Hi all, I've had my i7/4g/500gb 17" Macbook Pro since mid-2010 and am having someone who wants to buy it for $700, which is not a bad. I was about to sell it and buy a new 13" Macbook Air last week, but after researching more I decided to go for the 13" Macbook Pro. However the new 13" is coming soon with an unknown date. Considering I am the type who always wants the newest stuff, I feel I should wait. What do you suggest? 1. sell 17" now, and buy the new 13" in October (if it launches that time) 2. sell 17" now, and buy the current 13" model 3. keep the 17" now and sell again when the new 13" is out - concern: I cannot sell my 17" for $700 at that time. Any advice would be greatly appreciated!!