So this is my dilemma... Just got my machine on Wednesday at J&R Music in NYC, paid $1,499 at about 10:30am, later on in the afternoon I found out about the small spec bump and that the early 2013 versions got announced...Bummmmmmer Anyway I'm pretty happy with my new machine, however in my eyes it wouldn't hurt to spend a few extra bucks for double the memory (256) opposed to (128) on mine, with a small bump in processor speeds as well. My dilemma is in the form of how perfect my machine is as far as build quality goes, and how beautiful the screen is, colors pop, and whites are a really beautiful bright white. I've heard horror stories of people getting new rMBP's with yellow screens, small bumps and nicks in the frame, etc. So I guess you could say I'm a little worried on making the switch not because of the money, but because of the chance of getting a lemon or a new one with a yellow screen. whats everyones take?