>>55782854Because it was the better game.
Megas were a better gimmick than the half-assed fusion moves
Gen 5 also had the least fun competitive meta of all time with weather wars and gem spam
The transition to 3D was a big deal, something that should have happened with DP but the DS games lazily put off until XY. This was a big deal for many people wowed by the Stadium games back in the GB days.
The region was more interesting, more flavorful, more interesting to traverse
The character designs were better
The online features were better and easier to use
The Pokemon designs were MUCH better, particularly the starters and legends (the Pokemon you'll see the most of). BW's are often noted as some of the worst in the series, if not THE worst.
The music was infinitely better. Like, the only bad track from XY was the gym leader theme, which not coincidentally sounds like something from BW/2 in higher quality.
DS kids will not like to hear it but it's simply how it was. Everyone I know, genwun boomers all, left the franchise with gen 4 or 5, and only came back because of gen 6. Not all of them stuck around, but all of them speak fondly of watching their old favorites Mega Evolve into the Pokegods of schoolyard lore.
