Quoted from Rarehero:Multiple games for customers to chose from is good for business, not bad. Anyone who wants Hobbit will buy Hobbit. Someone who has no interest in Hobbit might want another choice. Stern has like 10 games in production. No game is derailing the other.
I'm not so sure how true this is. I have a friend that is buying one stern pro. He is torn between twd pro and gb pro. It will be one or the other. This has to be fairly common.