How much do you think that this would be worth to a seller or to trade-in at an Apple Store? 2014 retina MBP 15" 2.5 GHz Core i7 16 GB RAM 512 GB SSD Iris Pro graphics + nVidia GeForce GT 750M absolutely mint with only 8 battery cycles I have a new job that requires me to travel much more and it legitimately hurts my back to lug this big laptop around with me everywhere I go. I'm just your average business user, not a creative type at all. I bought it for its bigger screen and to occasionally play games (Rocket League, FIFA). But now I need a smaller Mac laptop. Has anyone else here traded down from the big Pro laptops? English is not my mother language, so please forgive any typing errors.