Because I have American Express and they're absolutely rock solid with this type of stuff.
+1
But Google wouldn't let me charge that purchase to Amex when I bought from Play. Dunno if that's only a Canadian restriction.
Amex is awesome. I once bought a $200 airline ticket. Days after I bought the ticket, the airline went under. Called Amex. They credited my account and helped me rebook the ticket at no cost.
I do pay for a Platinum charge card. But moments like these, it's worth the lack of stress.