No, I agree; 4th gen was about the limit of what I could keep up with. When Pokemon have more than two viable movesets and you can take a serious hit for not guessing the right one, you know the options have exploded. I love 4th gen for that, it was totally liberating, but if you keep exponentially building on that, it's going to get chaotic fast for those that can actually keep up with it. Let alone the masses that gawked when Pokemon broke 300.
Funny, I praised something I was just shooting the older games down for. But hey, I'd put down "Competitive Gen 1 and Gen 4 player" on my hypothetical Pokemon fan resume, so I guess I burn the candle at both ends.
I've got Stadium 2 as well; it's exciting but awkward. Gold and Silver really gave you a taste of what Pokemon could be (And how well HAL labs understood the G/S battle system), but didn't quite feel truly diverse yet.