I have just decided to start collecting GC games, and wasn't able to find much regarding GC oddities by searching.
I know that Resident Evil 2/3 go for a pretty good amount. And it seems that Backyard Baseball may be uncommon, according to eBay sellers. I also thought I may have heard of a Phantasy Star title that is rare.
Can anyone confirm any of this? And does anyone want to help assemble a list?