Right now I appear to be collection unfinished projects.
seriously, the Sony Vegas and Source Filmmaker save folders have probably a dozen projects each that aren't done yet. I'll start on one, get distracted, get a new idea, start on that, get distracted...... it's a wonder I finish anything.
I also collect dvds, and blu-rays, but can't do those as much any more. and trying to finish my discworld collection.
I used to collect trading cards. have alot of them. baseball, ninja turtle, star trek, even have the star trek next generation trading card game, and lots of pokemon cards (i think i may actually have a full set of the first series release. even have that holofoil charizard card everyone went psycho over.)