Quick Question about XBLA games on Amazon

Here is the question, does anyone know when Amazon releases new XBLA games on there website?  I want to get Marvel vs. Capcom 2 but, I just want to get it off there so I don't have to buy a 1600 point card.  I was looking on there today and I couldn't see anything for it yet.  Does anyone know?

I wasn't aware that you could do that...

you could just add points on you credit card from the markeplace.

I buy points from Amazon, and they send me the code immediately. Never have bought a game from them, though.

They just added The Secret of Monkey Island a couple days ago, so maybe a couple weeks delay?

yeah they are pretty slow about adding games I was gonna go buy Battlefield 1943 but then I look and its not there? but for some reason they got Monkey Island on there which seems pretty random since both were released pretty close anyway I just decided to buy online point codes instead