I think I'm the one odd duck around here that likes the 27" 4K spot. I run two of them, and it works for my corner setup: computer back in the corner, monitors up front, and I sit about 2 ft away from the monitors. I ~almost~ jumped on a 48" OLED last year, but they are just too big without significantly re-arranging things, and the 42" that came out this year aren't exactly that much smaller. I have a 42" regular LCD down in my den, so I'm familiar with that size. I've been tempted to run my computer over to my 55" OLED in the family room and play around with it, but I don't want to futz with the KBM on the couch.