The Echo Dot product page currently lists a promotion at the bottom that says you’ll receive $30 off the purchase of 2 Echo Dots. Since the Echo Dot is currently on sale for $39.99, that means two of them will cost you $49.98. However, only a $10 discount is being applied to the order at checkout, for a total price of $69.98. Several people have confirmed that Amazon’s Customer Service is applying the additional $20 discount retroactively when asked, so if you’re willing to have a short chat with customer service, you can buy two Echo Dot’s for $49.98 total. Thanks jimberkas for the heads up!