I was a little kid at the time. I used to spend hours with my GameBoy (the original, brick-ish one), even though I only had two games for it.
My aunt was getting married, and to keep me quiet during the ceremony, my parents got me Pokemon: Blue Version. I was hooked. Went out and bought Yellow when it came out. And then the same with Gold, and then Crystal.
Honestly, I think the series peaked with Gen 2: It wasn't the broken mess that 1 was, but they also hadn't started running out of ideas yet (An ice cream cone Pokemon? Really?) I got Sapphire as well, but I hated Diamond so much for some unexplainable reason... Ended up getting rid of it after a paltry two hours of playtime. I haven't bought a single Pokemon anything since.