Bought a 15" refurb in June right after the last MBP upgrades were announced. Got a good deal on a 2.53ghz w/4gb ram 320gb drive, 512mb graphics and removable battery. The thing is that I never use the discrete graphics, am often on battery power and like to pick up and move around the house. I work part-time doing web mock-ups but typically will be plugged into a 20" ACD when I'm doing so. The ONLY thing I think I might miss with the 13" would be the display size if I'm unplugged from the monitor trying to do a layout. I think I could probably sell for enough to purchase a refurb 13" and not lose any money - just time and hassle. Anyone else made the "downgrade" recently?