Why did Alexa give me free stuff?

ruouttaurmind thought this was worth mentioning said
5

I have never used Alexa to place an order before, and I was reviewing the Alexa daily deals, and a couple of the items came up as $0.00 after the Alexa discount. Is this a feature? Bug? Random giveaway?

Don’t get me wrong, I dig free stuff as much as anyone. But it’s got me curious.