http://www.amazon.com/Diablo-III-PC-Mac/dp/B00178630A/ D3 = $25 on Amazon but only 1 left.

http://www.amazon.com/Diablo-III-Reaper-Souls-Pc/dp/B00FENJVOE/ RoS = $29 on Amazon but only 3 left.

Total of $54

Damn, lol, Diablo 3 just got beat!

I'm fairly certain Blizzard held exclusive digital distribution of D3. Amazon still only sells physical copies. http://www.amazon.com/Diablo-III-Pc/dp/B00178630A

(I could be wrong.)