Since I never take my rMBP with me (only my iPhone), I'm trying to work out a scenario that's more cost-effective that'll give me more power at my desk. Since the iMac is the only desktop with actual graphics power for under $2k from Apple, this is my only option unless I go the other route that I forget if I can mention on the forums. But I surprisingly couldn't find the answer to this: how does the iMac display compare to the display on the rMBP in terms of color and contrast? I wouldn't mind giving up retina for a screen that's better otherwise if the iMac was a little cheaper but it barely makes sense to buy a iMac over a rMBP.