It wouldn't be cheating but I'm not 100% positive if they would consider it a duplicate and just not pay on it. It's hard telling. With some of the offers, they will actually credit multiple times if you make multiple purchases. But with others, if they see the same mailing address, IP address, or credit card number, they automatically consider it a duplicate.

If you were planning on getting one anyway, I say give it a shot. It wouldn't matter which reward program you use to buy it, it would either credit or not credit based only on obopay's system.