The only way you've ever been able to enjoy a proper Pokémon game is via handheld. Sure, we've had departures across other systems, but to have the genuine experience you need a Game Boy, Game Boy Advance, DS, 3DS, and so on. The legions of fans Pokémon has amassed over the years are ravenous, and continue to purchase new systems even if they don't need to upgrade, just because of Pokémon. This of course sends a clear message: fans are buying, and will continue to buy handhelds to play Pokémon, the flagship title.