Mine hasn't, and I think it's because of Injustice 2. All I know is I better get the game, or I won't be too happy. My order went through just fine when I ordered it too.
I finally got my order in. What I did is added it to my cart, stayed on the cart page for like 5 minutes before heading to the payment screen, and it stayed at $19.99 for me. Not sure if that would work for everyone, but I'm glad I was able to finally get an order through.
Is it possible, with the B2G1 at Best Buy, to get Mass Effect 2, Little Big Planet 2, and some other game for $59.99, but then take it back next week and get Dead Space 2 for free? I'm just curious to see if that would work.
I saw and bought DJ Hero for $29.99 for the PS3. It wasn't on clearance, but I just thought I'd let you guys know of the price drop. I saw it applied for the PS3 and 360, and I'm sure it applied to the Wii version as well.