I'm so dissapointed at the current resale value of MBA's compared to MBP's released in the same year. I always bought used MBP's at a great deal on CL and eBay and sold them after several months to a year of usage at about the same price or little less (again I said I bought them originally at a great price after a fair amount of searching and negotiating). However, the first MBA I bought earlier this year, 2011 MBA 13 i5 256GB Warranty till Jan 2013, already had its resale value dropped significantly. I paid $1,175 for it in March and it's worth only about $1,000-1,100 now. It's supply and demand in used MacBook market meaning there are a lot more people wanting MBP's than MBA's and obviously MBA owners like to upgrade their machine more often..