Holy crap! I would say ya got a problem!Rockcrawling is one; cripes I spent nearly $5000 on my rig last year alone. i think I've put about $2000 into it this year so far. And it's getting even more modifications as we speak--it's actually under-the-knife at Frank's house right now.
ProVideo is my other hobby (albiet closely tied to Rockcralwing, since it's what I'm shooting video of). I've dumped $20K into video production equipment in the past 2 years.