Persona 4the RPG was awesome, got made into a fighter game, unexpected but tolerable, gets made into a dancing game, I don't like the direction where this going.
It's also getting made into a crossover Etrian Odyssey game with the P3 cast. The general reaction has been "Hey, we're at least getting P5 next year, so they can make as many silly spin-offs as they want as long as that doesn't change."