Hmm, I must have been about 9 or 10 when Fallout came out. See, unlike some of yous, I had stolen the demo CD from a PC Gamer magazine (ah, the delinquency of youth), had installed it because I didn't know what it was, and was hooked on the combat. Being 10, I thought it was wild and awesome that you could shoot somebody in the balls. So I begged my parents for it, and I got it for Christmas. Started at 8 AM, played till about 10 that night. I almost beat it, but got whacked by the Lieu. Nowadays it takes me a little under 4 hours to beat the game to my satisfaction
Fallout 2 was definitely different. I screwed up the first couple of times I played through, until I realized that I could get away with killing the merchants in the Den. It was harder, less focused. Still, I loved the whole MKULTRA-esque Vault conspiracy, but was put off a bit by the introduction of "tribals". New Reno was hot **** in a champagne glass, as was Marcus, because obviously being a kid I wanted a mutant "on my team" since the first game .
I could definitely see how people were less impressed with F2. For a long time, I thought 2 was better than 1, but in my advanced age (10 years on these games!) I realize how at fault I was. Fallout 1 was absolute magic in action.