I agree, Mark. My grandpa is a retired machinist and has talked off and on about buying a small lathe so he can do some stuff just for fun. However, he's yet to do it. I had a great uncle who did end up with a lathe, though to my knowledge he never did anything with it. When I visited my grandpa at work, I thought it all looked like a lot of fun, but of course I didn't have to come back day after day, week after week, year after year.

I guess some jobs just lend themselves more to fun as hobbies as well, whereas others are strictly work vs. play. Of course, ideally we'd all have jobs that we enjoyed to the point where it didn't seem like work.