I have to echo those who spoke of less difference between the two now than a year ago. I'll miss the mini for many things, but the Air is a better fit for me. It's pretty awesome. It's like having a Lexus after driving a Toyota Avalon (the 4) and then an MR2. It's just nice to sit back and enjoy the ride with this one. For me the biggest difference it's far easier to read in bed holding the Air than 4. I'm thinking about joining gamestops power up rewards thing where you can get about 320 for your 4, I want to get a ps4 after adding some more money. Which I will probably get flak for since I was dumb enough to tell my life story and finances here.