The full retail prices is $199 not $399. The coupon only saves you $50. In fact the coupon was intended to get you a free Stream by discounting the stream to $50 and then giving you $50 off the Roamio. But people were abusing it by only buying one or the other so they stopped it. Someone said they're going to bring it back when they fix the loophole but for now it's dead.
Developer for VideoReDo