Thats right, I exchanged my SP1(with COmplete warranty) toward an SP3 today and got the original purchase price of my SP1 ($999 minus student discount) toward the transaction. I opted for the 256GB i7 and also threw in the Microsoft Complete bundle (2yr warranty, type cover, sleeve, and office 2013) at another $300 and walked out spending $930 after my student discount. This exchange followed a standard exchange through mail in which I received a lemon unit. After reading here of another members experience exchanging and upgrading their SP1 =>SP3 I gave it a shot... it worked! I am very pleased with the experience and especially with Microsofts support.