Thumb Score: +46
Amazon offers Select American Express Membership Rewards Cardholders with Prime: Up to 25% Off Select Amazon Devices when you follow the steps below and use at least 1 Membership Rewards Point towards the purchase. Shipping is free. Thanks RevOne
Note, offer eligibility will vary by cardholder. The maximum discount is $50. Discover is running a similar promotion for their cardholders, see this deal for more info.