I hate it when people do this (no offense). The games should never affect your love of Pokemon, because the love should be directed at the Pokemon. Even though I haven't played the Gens. I,II, or III, I still love those Generations anyways, because I've had the chance of being with those Pokemon all the same.
So really, I don't see the harm that the new versions have done to the franchise...I like most of the Pokemon in Generation 5, and that most likely won't change just because some sequels came out to it (although I did think that it was rather bland that the Legendary was just Reshiram/Kyurem, and Zekrom/Kyurem. :\).