The way new video game consoles come out like every year or so, the "old" becomes obosolete in the minds of the owners/kids so those get stored and the "latest version" is kept.
For instance, got a unit the other day, PS2 console, PS2 games (mostly scratched up), new PS3 remote control, a couple of PS3 games, NO PS3 console. So it looks like they stored the "old" PS2 and kept the PS3, except they accidently? left the remote for the PS3 in the unit.
I don't know why anyone would ever store a video game system though. For the most part they are small enough to keep around. Hell I have no time to play my crap but I still have my PS2, N64, NES and 360 hooked up to my TV.
Next point. I swear some people will buy anything. Sold 3 beds yesterday that were mehhhh for $40. Got rid of the ****ty headboards but had to sell the frames with it. Then dude sees the $40(if brand new) dirt devil vacuum buys it for $8. Best part is I never tested the thing to see if it worked. His buddy is interested in the broken rear projection tv, and for more then I'd get from scrap metal. Also wants a bunch of my dressers and he's willing to pay my asking price. This locker is so full of win.