Unfortunately that trend didn't continue with the GBA, whose games tended to use semi-volatile memory chips that will die after enough time or read/writes. Many of my old GBA games won't hold a save longer than a day or two anymore, without any viable way to repair them. Too bad, so sad.
But hey on the bright side emulators for GBA and GBC are seemingly perfect and run on anything. If someone makes a Gameboy advance micro clone for emulators that is decent I would buy that in a heartbeat.
