I recently purchased a copy of Super Metroid at a pawn shop. When I got it home I noticed a sticker on the back that said
"Not For Resale
Demo Game Only
Property Of Nintendo"
Think it's worth anything?
Demos are rare, so it might be worth something to a collector.
I just want to point out that even if it is rare and valuable, it will probably be a very difficult sell, because, if it only has a limited amount of content, the only people that would probably be interested in it are diehard collectors. I could be very, very wrong, though.
Sorry for the super late reply but I've tried it out and it has the full game.