Thank you everyone for your thoughts and suggestions. In the end, I decided not to wait. I'm selling my 15'' and my 11.6'' on eBay to get the MBA 13''. I realized that for what I do with my computer now, a 15'' is overkill. I don't really care about long-term either because I generally upgrade every 1-2 years in which case the Air is perfect for both the specs, weight, and new factor.
How much should I ask for my 15? I was thinking 2200? 2250? (It's opened which diminishes the value I feel even though mine retails for $2400). If it doesn't sell for a good price, I'm just gonna keep my MBP and sit it out.
I put the 11.6 for $1300 and already got a bid. It's unopened =D
I can't wait to be able to buy the 13'' once the bidding ends (if the MBP sells!) and the money comes through! Very excited! Thanks again!
Why are you selling your 11.6" Air on Ebay? Aren't you still within the 14 day return period?