I currently have 3 active macs. A late 2012 MBP, a mid 2012 MBA, and a late 2012 Mini. The reason I have three - I travel with a backup in case I have a problem with one... plus allows me to run a presentation with one and have a backup. (Note I also have an iPad air). I have the Mini because it was originally a screamer with a 1 tb drive that keeps my 65,000 photos intact in iPhoto - too many for the Pro or air. I keep all of my data / docs / etc. in Dropbox - so they're pretty seamlessly available by all machines. The ONLY reason I have the mini - is photos. It's hooked up to my cinema 27"... and it's a great looking display. But I could just as easily hookup the air or pro and have the same experience. I feel mac heavy. And I want to lighten my load. Any advice?