I used to collect comic books but after I gave away about 2000 of them in 2010 I'm down to only 8000 issues and 270 trades and hardbacks.

And one of the laziest cats I've ever seen:

Lego and MegaBlocks:

Oh so many things:

Starships.

Firearms. I tend towards either modern, unique weapons or black powder.

I collect read-along record books and storybook vinyl from the 60s, 70s, and 80s. Here are a few highlights io9ers might be interested in:

I used to collect those little plastic colored flags that low end steak houses would put in steaks to indicate the level of doneness (rare, medium rare, well, done) but AFAIK they stopped using them.

Neo Geo arcade circuit boards. I have around 40. Coupled with a 1080p pixel perfect upscaler and scan line generator you get the old school arcade experience.

Its kinda weird but I collect hotel key cards (of places I stay at) lol. I don't know how it got started but I've always loved traveling so I guess that has something to do with it.

Mainly manga. This picture is a bit out of date but the size of my collection is about this same (at this point I don't think I want it to get to much bigger).

I used to collect Superman stuff. Action figures, statues, tshirts, Christmas ornaments, books, graphic novels, artwork, comics...I have every Superman comic from 1986's "Man of Steel" mini through 2012's Action Comics #904, which was the last issue before the New52 started. I stopped collecting at that point…

My interesting collection is rocks, actually—whenever I have friends or family go someplace cool, I ask them to bring me back a rock that they see—just some small stone that they see and think of me.

Boardgames. 619 at last count.

Complete in Box (CIB), nearly mint "black box" NES games. If it doesn't have the Big 5 (box, game, Nintendo-brand dust sleeve, instruction book, poster / Nintendo Power-subscription insert, map?), I'm not interested. I was born the same day as the NES so we're both turning 30 next year. How many "black box" games were…

I know a lot of people just put movies on their computers because you can hold hundreds and thousands, but I love collecting DVDs. I love the cover art, and the titles on the spine, and taking 15 minutes to find something to watch because I can't pick from all of them. Plus people seeing the collection for the first…

For a long time I collected Star Wars toys, the vast majority being from 1995 onward. I stopped shortly after Episode III because I had essentially lost faith in George Lucas's vision of the Star Wars universe. Now I collect all kinds of stuff, mostly robot toys (Transformer Masterpiece, the various Borderlands…

No power in the 'Verse can persuade you otherwise :)

Now officially canon. No one can persuade me otherwise.