New Generation for one.
Then the new Pokemon designs.
Then the new Region.
New graphics.
New everything.
Also the fact that this is the first generation to add more NEW Pokemon to the games than any previous generation bar the first one, which added the first Pokemon to the entire franchise, lol.
R/B/G/Y: 151
G/S/C: 152 - 251 (100 Added)
R/S/E: 252 - 386 (135 Added)
D/P/PT: 387 - 493 (107 Added)
B/W/?: 494 - 649 (156 Added)
And yeah, I'll be here with Pokemon until it finally ends for good or until I drop dead.
That's how dedicated I am, even if people keep "losing faith" with each generation.
But that's what they always do, they see the new generation, are afraid of change,
thrash it before it releases, get it when it's released and then they love it.
Constant cycle.