A long time Mac user. Had been using a 17" MBP until now. It still works fine for me, but decided to finally move up to the retina screen. And use the old one as a secondary unit. So, here it goes-- Initially bought the 15" Mid-2015 MBPr with the M370x for my home-office. Since I had been accustomed to the 17" screen, that felt small so returned the MBPr and got the 27" 5k iMac. That felt ginormous in my home-office, so had to return that too. Bought the 21.5" 4k iMac, that too felt too big. So bought the 15" MBPr again and finally getting used to the smaller screen. I just wish Apple also had 17" MBPr model to offer, would have been perfect for me. Anybody else miss the 17 incher or am I the only one?