Quick answer
A tool upgrade is good when it changes your job options, not merely when it looks expensive. The best early upgrades should make several common jobs safer, faster, or cheaper to complete.
Upgrade scorecard
Use this scorecard after launch to judge every tool upgrade consistently.
- Coverage: how many job types use this tool?
- Risk reduction: does it prevent failed repairs or rework?
- Material savings: does it reduce wasted parts, paint, or replacement cost?
- Learning value: does it teach a repeatable repair pattern?
- Payback speed: how many jobs are needed before the upgrade feels worth it?
Tools to delay
Delay specialized tools when they are tied to one visible contract, one room type, or cosmetic work that does not unlock future money. They may still be important later, but early cash should stay flexible.
How this page should evolve
After launch, this guide should become a table with tool name, unlock moment, cost, job coverage, tested mistakes prevented, and recommended upgrade timing.