MacBook Air hasn't really been upgrade (apart from a RAM boost) in 2 years now. As an Apple event is coming I'm wondering wether to buy one. Obvious answer is wait...but... There's an offer on currently for free Wireless beats (£269), with the education offer which is about 10% off an Air. Just so happens this runs out on Sep 5th.... So conundrum, but with a education discount and get free beats or wait...?