For me there's only a handful of games that I really enjoy playing. I've spent the past 20 years or so playing the Infinity Engine games, Spiderweb stuff, various Diablo incarnations, NWN, the Tomb Raider series, and WoW. These are (generally) well supported on the Mac, and the activities of Beamdog have resurrected the IE + NWN series. I'm grateful for this.
I spend a lot of money on cheap,shiny stuff from GoG, but tbh, many of these games are dross, or perhaps I'm just not as easily amused now (although there's the occasional diamond). So yeah...the relative stability of PC gaming has its appeal. Broken software is never fun.