- How much is your time worth?
- A tractor could save you time(money) which could be spent doing other, potentially more productive, things.
- How much will this tractor cost you per hour (depreciation, fuel, repairs etc.)?
- How many hours will you use it?
- Would it be cheaper to hire out the work to someone else?
- Will a tractor make you happy (e.g. less stressed, tired)?
- Do you like tractors?