[andyfleming]

I chose an air a while back, and it has been fantastic for a lot of things. However, now I'm considering going back to the pro.

The biggest limitation for me is the single thunderbolt port. If I want to connect to ethernet, a display, or other thunderbolt devices (like an audio interface I have), I can only connect to one. Even on the 13" MBP, I can connect all three since there are two thunderbolt connections plus HDMI. The other biggest limitation has been video performance and CPU performance. I've ran into performance issues with virtualized boxes for local development and also with connecting an external display.

As far as retina, I could care less. It's nice, but not a necessity for me. Also, you get more battery life without it. That said, I'll still be moving to a MBP.