I had Yugi-oh AND Pokemon cards. Still have em somewhere. They got packed away somewhere. I haven't seen em in at least four or five years lol.
And yeah, Charizard was the shit. But actually not the rarest. I believe Alakazam was the rarest of the original set. You can tell because (and I don't even remember how I learned this) the numbers in the corner not only indicate their number in the set, but how rare they were. Alakazam was no.1 in the original set, therefore that was the rarest one. I think Charizard was actually only number four, behind Alakazam, Chansey, and Mewtwo.
I've said too much. Ah, my repressed, nerdish, bully-filled childhood is rushing back to me! After I had worked so hard to forget everything between 4th grade and my freshman year of high school.