Making games I like, and it's more losing trust rather than losing business, I'll always give a game a chance to at least look into.
Studio that I have had good experiences with Naughty Dog, Nintendo as a software developer, Rockstar, Valve, Level-5, etc. I'll have a lot more trust with, because they have not drastically failed me in the past. Others I'd have to really dig deep and look into the game before buying.