Hello! I'm a web designer and I have to buy a new laptop by Christmas, choosing beetwen the MacBook Air 13" (256 GB SSD, 8 GB Ram) and the new MacBook Pro 13" Retina (256 GB SSD, 8 GB Ram). Today I went to an Apple store to compare the two machines and, above all, to see what happens when setting the rMBP resolution to 1440x900. I have to admit that I can't see any drawback in setting the resolution to 1440x900 (instead of the ideal retina resolution): the text is sharp and beautiful such as the images. In comparison, the MBA (also 1440x900) is faded and blurry. So my plan is to buy a MacBook pro 13" Retina and use it at the 1440x900 scaled resolution. Is there any drawback associate with this setting? More CPU load, more battery drain, stuttering, display wear? In other words, is there any reason I should *not* use the 1440x900 scaled resolution on the MBP 13 Retina? Thank you for your advice!