>>57580056Yellow released at the peak of the Pokemania hype, so of course it was extremely popular since a lot of kids who didn't buy RGB in the original wave were fans of the Ashnime by the time Yellow released. Crystal required at least a Gameboy Color, and debuted outside of Japan after the Gameboy Advance was already being sold. Only diehard Pokémon fans asked their parents to buy it, since most kids with GBAs only wanted GBA games while other kids still stuck on the older black and white Gameboy couldn't play it.