I canceled my order for a 2012 iMac 27" because I concluded that, for me, this model is a huge step backwards from my December 2009 iMac 27". The less reflective screen is a definite plus. HOWEVER, the ridiculously thin screen edge required HUGE compromises: 1) SD card slot moved to a difficult to access location on the back 2) elimination of an optical drive. One has the option of purchasing an external optical drive for $70, but in addition to the cost that takes up desktop space and uses up one of the four USB ports 3) whereas the original announcement of the new iMac touted it as having even better sounding audio than the previous iMac, which I was very skeptical about, the early reviews of the new iMac confirm my worst fears -- the bass response is zero, resulting in a tinny sound! 4) while the Fusion drive is a great feature, it is way overpriced for its storage capacity at $250. I believe the perfect upgrade to the iMac would have been to simply make the screen less reflective and have a more fairly priced Fusion drive, plus the processor and graphic card improvements. The thickness of the box should have stayed the same (already PLENTY thin), thus allowing the SC card reader to remain conveniently on the side, the optical drive to remain and, most importantly, the audio quality should have at lease been maintained, if not improved. The thin edge of the display and weight reduction are meaningless for a desktop machine. The edge thickness will only be noticed by looking at the computer from the side, but never noticed when actually viewing the screen. Ironically, the ultra thin screen edge required the iMac to bulge out to the rear and the new model may actually be even thicker than the previous model. The lighter weight is not important for a desktop machine. This is not a portable unit! Mine has never been moved from my desktop in three years! One of the things I love most about my older iMac is the superb audio quality. There is NO WAY I would upgrade to a new model with significantly reduced audio quality, to say nothing about the absent optical drive and hard to reach SC card slot. When Apple addresses all of these issues, only then will I purchase a new model. Or, I may choose to go back to one of the great new PC's.