I have not decided on what should ultimately replace my Windows desktop PC. The dilemma is this: I could go for a 27 inch 5K iMac OR a 15 inch retina MacBook Pro. Configuration for the $2699 iMac: 27-inch iMac with Retina 5K display 3.3GHz quad-core Intel Core i5, Turbo Boost up to 3.9GHz 16GB 1867MHz DDR3 SDRAM - two 8GB 512GB Flash Storage AMD Radeon R9 M395 with 2GB video memory Magic Mouse 2 Magic Keyboard (English) & User’s Guide Accessory Kit Configuration for the $2499 MBP: 15-inch MacBook Pro with Retina display 2.5GHz Quad-core Intel Core i7, Turbo Boost up to 3.7GHz 16GB 1600MHz DDR3L SDRAM 512GB PCIe-based Flash Storage Intel Iris Pro Graphics + AMD Radeon R9 M370X with 2GB GDDR5 memory Force Touch trackpad Backlit Keyboard (English) & User's Guide Accessory Kit I can always get a large screen if I am at home (e.g. a 27-30" IPS LCD panel) to attach to the MBP. That of course is unnecessary with an iMac; however the iMac is a little too bulky to move around whenever I travel. I have tried to keep configurations very similar and prices about the same. So which one would you recommend in my case?