I'm really torn between the MacBook Air and the Retina MacBook Pro. The screen on the rMBP is absolutely fantastic but the resolution is so high so I'm concerned about non-retina content. For example, I obviously can't play games at a decent framerate at retina resolution so I'd like to scale it to 1280x800 (or whatever it is), but I'm concerned about the scaling performance penalty and if it will look blurry. I'll be using the laptop mostly on my couch and on my dining room table, but gaming (very, very light games but stuff like Team Fortress 2, etc) is a big concern but again, I'm only talking about older stuff. I just don't want it to look blurry (compared to a MacBook Air with a 1440x900 resolution) I'm also concerned about applications that haven't been upgraded to retina. How bad do they look?