Hey, Dave. Funny, I was thinking about making a similar post just a couple of days ago.
Aside from the Challenger, which is more of a way of life than a hobby -
I'm a photographer (2 35mm bodies, 2 4x5 bodies, boatload of lenses). This is also becoming less of a hobby and more of a business, but I'm trying to still do the things I like with it. I'm waiting for digital prices to fall into line with the capabilities of the cameras vis-a-vis what I already have.
I'm a strategy wargamer, recreating things like Gettysburg, or things that never existed like a game based on starship combat in Star Trek.
I'm a writer. Since I write for a living now (as an instructional designer), I don't tend to do a lot of writing for fun, but every now and then I get the urge.
I used to build models, but I don't have the time or eyesight any more. I've kept all of my e-body kits (more than a dozen of them) and one day I'll probably start back on them. Everything else went to e-bay. BTW, is that a Ross Gibson motor you're holding?