Best thing about retiring from mainstream commercial videogame development? Retiring from caring much about Windows. I still have one machine for photoshop, and I want to keep my code compiling on the sad and pitiful MSVC but that computer is going to be sad, neglected, and not upgraded. I don't really understand what it's for at this point, whether you're an ubergeek or the most causal internet user. "Games" used to be answer, but Valve kind of upended that.