Ahhhh. Yea, that makes sense. I only actually played Gen 1 when it came out, but I remember Celebi basically being the Gen 2 equivalent of of Mew.
Ironically I bought Gen 2...and then pesky adulthood got in the way; and now I'm trying to binge my way through the series, and re-create what it would have been like to play when they were released, under the best case scenario. So when I reach a point where I'd catch a 'mon on another version, I'll import with Pokehex as if I was trading with a friend; except for the event pokemon that I'm starting with, as if I went to an event. I even bought fresh batteries, a security bit to install them, and a cart flasher. Pretty psyched!