[jmadsen]

I think that's the reason I (and many programmers) enjoy gardening/farming.

Putting your hands in the soil, seeing the growth & blooms, eating your produce - very satisfying!

[BatFastard]

That's why I went into software from hardware. From software I often get immediate returns, from hardware it often took weeks.

Funny thing is before I did hardware, I was running a wood/machine shop which was satisfying, but didn't pay very well.