Owners of the Nexus 7 . . .

I am planning on buying the Nexus 7, and I was going to order it from Google Play for the $25 credit, but I saw a few commenters over at TechCrunch who say that you get the credit no matter what (second comment - Dong Train and Repliers). Any of you know? There's one at my local Sam's Club. That's a 15 minute vs. waiting 1 - 2 weeks.