It really depends on your priorities and what you deem fun (if this isn't work related). I was going to get a regular iMac, but my husband said that I should get the retina so that stopped all hesitation for meAnd the price difference once you go beyond base becomes fairly small in comparison to a regular iMac.
This is true. Just like me returning the MBA makes me feel like I'll be paying only $1500 for the iMac =D