I'm trying to decided between a 15" and a 17", along with a lot of other people it seems (based on the number of threads here). So I've comped up some images showing the screen resolution differences. not only are these images the same size as it's respective laptop screen, it also shows the difference in pixel density. the 17 is 133ppi, while the 15 is 110ppi and 13 is 113ppi (thanks for the correction slffl). note: these are basically fakes screen shots (i know it's got a tiger menu bar and a leopard dock). the point is just to show the difference in screen real estate with the line of macbooks. I hope someone finds this useful! here we first have the 13", then the 15" and the best for last, the 17".