It's back: Amazon has resurrected its best deal ever on the Echo Dot. First run back in October, the deal gets you a third-generation Echo Dot and a one-month subscription to Amazon Music Unlimited for just $8.98. That's $41 off the normal price of the Dot alone, plus you get to listen to pretty much any song you want for a month. The only potential hitch is that you have to be a new Amazon Music Unlimited subscriber.