So I was going to pick up the 15" MBP but figured I'd wait for MacWorld 09 to see what they announce. Sure enough it was the 17" MBP. Some Comparisons: After student discount, 15" is $2,299 while the 17" is $2,599, that isn't much of a factor. 15" Weight and Dimensions (HxWxD): 5.5lbs 0.95 x 14.35 x 9.82 inches 17" Weight and Dimensions (HxWxD): 6.6lbs 0.98 x 15.47 x 10.51 inches Again, the difference seems very minor, as the 17" is only a pound heavier, just over an inch wider and just under an inch deeper. Specs aside, and considering only portability, is there any legitimate reason (other than price) NOT to get the 17"? Does anyone know the dimensions of the previous generation 17" MBP? Seems like it was a lot larger from what I remember. EDIT: I think these are the specs of the old one: 17-inch MacBook Pro • Height: 1.0 inch (2.59 cm) • Width: 15.4 inches (39.2 cm) • Depth: 10.4 inches (26.5 cm) • Weight: 6.8 pounds (3.1 kg) with battery and optical drive installed I guess it will be large afterall. The 15" seems a lot smaller in the store for some reason, but it's only less than an inch wide and deep.