FYI. Microsoft also has a trade in program for the Surface Pro. I got $305 trade in for my old Surface Pro. I also got some cash back for trading in an old 17" laptop and 11" netbook. Not as much as I expected, but the guy who took care of my sale also threw in a bunch of other discounts as well. All told, I got a Surface Pro 3 i5 128GB, with a cyan type cover, and a Snugg electric blue leather folio case for just over $900 including tax.
I walked into the Microsoft store with 30lbs of old stuff and walked out with 5lbs of awesomeness.
Nice job Microsoft! Thanks!