Retina resolutions are not the problem. Apples GPU drivers are the problem. See also:one is retina, another is regular lcd. Of course it's different, what the hell are you guys smoking exactly.
and i would never want a retina on a 27" imac, even with the highest graphic card upgrade, it will be slow as hell. Maybe in another 5 years...
https://forums.macrumors.com/showthread.php?p=15832152#post15832152
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Money? ;-)Just imagine what a 27" "retina" iMac would cost.![]()