I hear people are having problems such as, tinting/high pitched noises/bleeding. Should I be concerned about these problems? I'm looking at picking up either a MBPr or an iMac, I really don't wanna be dealing with constant returns because of problems. I'm gonna be watching movies, etc with dark scenes on the iMac or with an external display with the MBPr. However I shouldn't be concerned with these problems then I'll go with an iMac, preferably less cables, more screen real estate, more powerful, etc. I've only ever had one IPS display e2407wfp which had bleeding all over the place and you had to look at the screen in a weird way to remove the glow when watching films which was really annoying. Thanks.