Well, this is a bit of a weird one - CCGs, for all their talk of rarity and collectability, aren't actually that rare. Even Magic, first "Alpha" set - the first CCG run ever, had a print run in the millions. And while rares from that set can be expensive, there's still a thousand of them - each. The popularity is much more from demand than from supply generally.
So, I've got a ton of rare cards, but so does everyone else. Even the promo stuff, like the Fajo Collection and the Future Enterprise, aren't exactly "rare" - there are multiple people in town with copies of those.