Keeping an organized collection of general spare parts such as nuts, bolts and washers can save you time and trips to the hardware store.
A farm truck doesn't have to be a truck, but any automobile you use in a wide variety of ways to help with farm tasks.
For some tasks, such as heavy mowing or plowing, full throttle is necessary, but for many others, less throttle saves fuel and also creates less noise.
It depends. Consider how you'll use them to transport water on your farm, and you might end up purchasing both types. The differences can be significant.