One of the worst things I ever did was being the head machinist for my department in college. We had some old hoopty lathe and equally small-time mill, but the fact that I learned to use them, means that I'm doomed my entire life to feel incomplete without machining capabilities. Not a project goes by where I didn't wish I could just have 15 minutes with a lathe or mill. It's just an astronomical leap in what you can accomplish. And all the hobby stuff that I need to machine is way too small-peanuts to have a machine shop do.
Right now I just need some spacers. 0.505 ID; 0.75 OD, 1.385 long. Such a simple thing would take minutes on a lathe. But if you don't have a lathe, well, that's just too bad.