I see people wishing for 16 gb of ram, retina display or dedicated graphics card. Would this really be a good idea with the current fans and airflow system? Anyone who have tried to do some actual heavy work on the macbook air notices this problem. The fans quickly go from silent to jetplane mode. And it heats up drastically. How would this work out with a retina display? Why would you want 16gb of ram with this problem? (not that 16gb ram alone as an upgrade would do anyone any good) Do anyone agree with me, or am I wrong?