- Unless you need the higher processor speed or the Thunderbolt port, previous gen refurbished should be quite a deal.
- The 15" high res (1920x1080) is the sweet spot for portability and desktop use. I have a 17" now, and it's really just too big. When I bought mine though (late 2007), the 15" didn't have a high res display. If I were buying one now, it would be the 15" 1080p or the 13" Air (ultraportable).