I bought my current triple core expressly for the case of an added core (couldn't afford a quad core at the time :/) for editing. It's been 2 years I've yet to edit anything on it. I bought another HD for RAID (expressly for editing), haven't even installed it yet. that's at least 200 dollars right there totally wasted, I'll never get that back... and yet I still don't install my HD :/
I've bought a raptor drive expressly for my hobby (AMVs not porn... if I wanted porn I'd buy a 1tb drive duh)
I've bought tons of video capture devices trying to find one with composite in (that's not copy protected)
I've bought DVDs I didn't even watch just to pull clips for AMVs, music CDs too.
I'd be much richer if not for the FUN I'm having now

If you do not think so... you will DIE