So Im looking to replace my early 2011 13 inch with a new machine. I'm not looking to spend more than $2,100 including my education discount. I don't know which machine I really need. I can get the base Retina 15 with the 2.2 i7 16gb of ram, and 256 SSD. or I could spend the same amount of money and get a 13 inch with the 3.0 i7,16, 256. My primary uses are Safari, Spotify, moderate Aperture and light Final Cut Pro. The screen size isn't really an issue as I dock my machine 90 percent of the time anyway. Portability size and weight isn't really an issue to me either. Any suggestions???