Excavator Comparison Beyond Specs: Cost, Resale and Payback
Most excavator comparisons stall because two machines pass every specification test and still feel different. At that point the decision stops being technical and becomes financial: what does each machine cost to own, how much will it be worth when you sell it, and how quickly does it pay for itself on the work you have.
This article sets out the three financial comparisons — total cost of ownership, resale value and payback — and a simple scoring method for choosing between machines that are technically comparable.
Total Cost of Ownership
Purchase price is typically the smallest of the three big numbers. Over a five-year ownership period, the machine's price is usually a minority of what it costs you.
| Cost element | Share of five-year cost | How it varies by machine |
|---|---|---|
| Purchase price (net of resale) | Largest single item | Scales with size and specification |
| Fuel | Significant | Scales with engine size and hours |
| Servicing and consumables | Moderate | Fairly stable across similar machines |
| Wear items — tracks, buckets, teeth | Moderate to high | Depends heavily on ground conditions |
| Transport between sites | Moderate | Step change at the 3.5 t towing threshold |
| Insurance, storage, finance | Moderate | Scales with machine value |
| Downtime | Hard to predict, often underestimated | Depends on parts supply and service access |
Downtime deserves particular attention. A machine that loses two weeks a year to parts delays loses roughly 4% of its earning potential, which over five years can exceed the difference in purchase price between two models.
Resale Value
Three things determine what a compact machine is worth in five years:
- Hours, not age. A five-year-old machine with 800 hours usually outsells a two-year-old with 3,000.
- Engine and emissions specification. Recognised engines from established manufacturers with current compliance hold value noticeably better than generic units. This is the single largest non-hour factor.
- Condition of the undercarriage. Tracks, rollers and sprockets tell a buyer how the machine was treated. Undercarriage condition is the first thing a used buyer inspects.
Machines in the 1.5–3 t band tend to hold value best, simply because demand is broadest there. Very small and very large machines have narrower buyer pools.
Payback: The Only Number That Really Matters
Payback period is the honest comparison. Estimate it as:
- Monthly revenue attributable to the machine — either work won because you own it, or hire cost avoided.
- Less monthly running cost — fuel, servicing, finance, insurance, transport, storage.
- Net monthly contribution divided into the landed purchase price gives the payback period in months.
| Scenario | Machine | Utilisation | Indicative payback |
|---|---|---|---|
| Owner-operator, mixed groundworks | 1.5–2 t | 12–16 days/month | 18–30 months |
| Small contractor, steady pipeline | 2–3 t | 18–22 days/month | 12–20 months |
| Attachment specialist | 2.5–3.5 t | 15–20 days/month | 14–24 months |
| Occasional user | Any | Under 6 days/month | Often never — hire instead |
These are indicative ranges, not predictions. The point is the shape: payback is driven far more by utilisation than by which machine you choose. A cheap machine that sits idle never pays back; an expensive one that works every day does.
Scoring Two Comparable Machines
When specifications are close, score each machine out of ten against the criteria below, weight them by importance to your work, and total the result. It sounds mechanical, but it reliably produces a decision and it exposes the reason for it.
| Criterion | Suggested weight | What a 10 looks like |
|---|---|---|
| Meets access constraints | High | Passes every gate you face with margin |
| Meets depth requirement | High | Covers deepest recurring task with 300 mm spare |
| Transport compatibility | High | Towable on what you already own |
| Attachment capability | Medium | Flow exceeds your heaviest attachment's requirement |
| Lift at working radius | Medium | Exceeds heaviest routine lift over the side |
| Running cost | Medium | Lowest in its class |
| Parts and service access | Medium | Wear items stocked within a day |
| Expected resale | Low to medium | Recognised engine, current compliance |
| Operator familiarity | Low | Controls match what your team already uses |
Weight the first three highest for almost every buyer. Machines that fail a hard constraint should be eliminated before scoring rather than scored low — a machine that cannot reach the site cannot earn anything, whatever its total.
New vs Used in Financial Terms
- New — higher capital cost, lowest downtime risk, full warranty, best finance terms, slowest depreciation in percentage terms.
- Nearly new, low hours — often the best value; someone else absorbed the first year of depreciation and the machine is still under warranty.
- Used, high hours — cheapest entry, highest risk. Budget for an undercarriage and a hydraulic service within the first year, and only buy with service records.
The comparison that matters is cost per reliable working hour, not purchase price. A used machine with records and a healthy undercarriage frequently beats a new one on that measure; a cheap used machine without records rarely does.
There is also a middle case worth looking for. Ex-demonstration and ex-fleet machines with low hours are often the best value in the market: someone else has absorbed the steepest part of the depreciation curve, the factory warranty is usually still running, and the machine has been serviced on schedule because the previous owner had a reason to keep it working. Ask specifically whether anything of that kind is available before committing to a brand-new unit.
Deciding
Eliminate on constraints first, score on weighted criteria second, and check payback third. If the payback period is longer than you are comfortable with, the correct answer is usually to hire for now rather than to buy a smaller machine — because a smaller machine that cannot do the work will not pay back either.
The mini excavator collection publishes specification and pricing for every machine, so cost per unit of capability can be compared directly — from the SDLE10 to the SDLE42.
