The only thing I'd like about VGA graded crap is that if the casing was designed and built to protect these things as museum pieces for centuries to come. And they're not.
If they are grading it for themselves there really is no harm in throwing it in a plastic case for further protection.
Hmm, I guess it's not really rare but, I did have the region-lock free Korean version of Red Seeds Profile aka Deadly Premonition for the PS3.
Rarest thing I've got is probably my 10th Anniversary Sonic Dreamcast. Not sure how rare it actually is as I've heard so many different numbers with regards to how many in the world there are.
I also have the black model (the best one) of the Treamcast ! http://www.youtube.com/watch?v=X5sWKBpC9sU
Right now it's probably Zelda - Twilight Princess PAL (SCN) for Gamecube.. sealed with red Ninty tearstrip The spine says UKV, but I know for a fact it's SCN, scandinavian.. To my knowledge, there are only 3 of these known
I have a Nintendo Demoboy II I was helping somebody out who needed an extra hand to remove junk from somebodies house. I went back to the guys house to unload all the stuff that wasn't junk and I found a Nintendo Demoboy II and a custom made Super Nintendo Arcade pad. I asked the guy if I could have the Nintendo Demoboy II and he said sure its just a Gameboy anyways. Course he didn't realize the thing could be worth a bit of cash. Of course explained in the video below I do not have the cables nor the Gameboy to use the machine but none the less its still part of Nintendo history. Twisted Metal 2 was released for PC for a limited time before Sony made it the exclusive for its Playstation consoles. I went to a local buy and sell shop and they were selling the game for 5 dollars I knew I found a decent collectors item so I bought it.
I don't have much rare stuff, I think. My Top Secret on Famicom could be it or my brand new sealed Sakura Taisen Dreamcast would be the rarest pieces.
I'm not sure about what could be the most rarest I have, so I decided to show a picture of this: I also have a custom Gameboy:
Just got Duck Tales 2 for NES in the mail today. Now that may be the rarest game I own. ducktales 2 NES by Y=MX+B, on Flickr
Grandia II or Power Stone are my rarest game right now. But my Roommate has a copy of Clay Fighter Sculptors Cut.. SUPER JEALOUS.