Hello! This is my second retina machine (Haswell maxed out) and I just love it. Bought it mostly for work, but I play from time to time. The thing is, I play only Blizzard games and most of the time it's World of Warcraft. So many people wrote how unplayable this game is on OSX. Well, setting up my BTO (arrived today), I installed WoW and tried it out. First impression - disappointment. Fullscreen gives low frame rates, becouse it runs in native res, no matter what I choose. 10-14 fps was max. But what the hell, even on my desktop I don't play the game in more than 1600x something (always in windowed mode), so in for retina native res, 1280x800 windows would be all I need. And with maxed out details, it runs 40-60 fps in that mode. But running this with default app settings, makes the game window look so small, I can't barely see anything. Solution? Right click on WoW 64 bit binary (Applications/World of Warcraft), choose Get Info and check "Open in low resolution". Voila, you can use native res WoW (1440x900 would be a full screen for 15") and have maxed out everything and great frame rates.