Until fairly recently, I really didn't see the need--in my situation--to go with a 27" screen. However, recent projects with Logic Pro X have sometimes made me feel like I could use a little more "real estate." I won't be purchasing an iMac of any size until updated models come to market. but, in the meantime, as the thread title queries, does anyone have regrets about their choice of 21" vs 27"? Thank you.