I'm seriously considering a new iMac for a workhorse computer after relying upon a mbp for a number of yrs now. My 2010 27" iMac is still going strong and has been about as stable a computer anyone could ask for. The light weight of the 21.5" appeals to me b/c I keep my office in a shop environment and sometimes just picking the whole computer up to get it out of the way for a job sometimes is nice. (I do this w/my 27" that's over 20lbs) How crazy would I be to buy a top spec 21.5" over a 27" of any flavor? I would like to wait this month out to see if the iMacs get some attention, as rumored. At the same time, this series of the iMac is very mature and the 21.5" seems to be a pretty sweet computer. Spec'd out, I would think it'd be a pretty powerful little computer as well. Your comments will be greatly appreciated..what say you? Who has a 21.5" and regrets their decision not to go 5K? *I'm a pretty big fan of Mojave thus far & it's got to be pretty sweet on an iMac, yes?