I have decided to return my rMBP after a few days of playing around with it. I love the computer but I personally feel that it is not 100% ready yet. I installed Mountain Lion to see if it would help with any of the sluggish graphics and it did, but not enough for it to be unnoticeable for me. I feel like lots of every day tasks were very sluggish and jittery.. Especially scrolling on certain web pages, sometimes even in iTunes, as well as 90% of the time I used mission control. I noticed the problem even more when having the application opened in full screen. I would have loved for this computer to be perfect but as hard as I tried to adjust and convince myself it could be fixed in a future update, I just had to say no. So to my 2010 15" MBP I will go.. It will have to suffice another year. I just hope next year Apple gets the rMBP as close to perfect as possible.