Of course. But having these too is always a good bonus. It helps if people don't have to buy another system for some games they love, but like you said, they're hardly a selling point.
Oh yeah, don't get me wrong, as a Switch owner it's nice to be able to play stuff like Doom, Wolfenstein II, and soon Witcher 3 on my system, it's just I doubt sales would be affected if games like that stopped.
Bet with Liquidlaser: I say PS5 and Xbox Series will sell more than 56 million combined by the end of 2023.