I've got a 2015 13' Air and while the screen looks decent, I'm thinking of buying the 2015 MBP, mainly for the better screen, but I'm reading that the best resolution is 1440x900 in that screen, the same as in the Air. I know text would look tiny with the native resolution, but what does this effective resolution really mean? If 1440x900 is the best on the Pro, does that mean I wouldn't be able to watch YouTube videos in true Full HD 1920x1080? I read that FHD videos don't look that great on the Pro. If the resolution is scaled down (or whatever it's called), I'm I better off staying with my Air? I would have to pay 835 euros to change from the Air to the Pro. Would it be worth it? I also get 8GB RAM 256SSD, double on my Air. Thanks.