So let's take an example. You are coding and let's say this is your main thing. If you buy a small tractor, i have one also, you can do much work with less effort in less time and you could sell some product also. I use the the tractor also to carry the wood i cut for heating and cooking. That way you can achieve depretiation quickly.
By the way, since you said about olive oil, most of the oil producers in Greece, they do it as a side project. They have other jobs...
