$650 --- lightly used Thinkpad x240, Core i7, 2014

Thinkpad x240
Windows 7, 12.5" FHD 720p, i7-4600U processor, 4+4GB, 500GB HDD.

Bought for $1500, selling for $650 OBO. Completely functional.

Bought at Stanford campus bookstore in June 2014, but replaced the original SSD with a HDD (because I needed to use a SSD for another computer). The computer has been in my dorm room for most of the time, and has been lightly used.

Please note that the laptop has been opened once to replace the hard driver (I followed Lenovo's instruction manual). I can send photos if interested.