I just finished booking a ticket on AA.com, and immediately after there was a little scroll at the bottom of the confirmation page with some really cheap hotels. So I bit the bait and booked a hotel for about $30/night cheaper than anywhere else I have seen. The confirmation is from aa.com and says "thank you for booking a hotel with your flight" and that this is a pre-paid hotel voucher. I have never seen this before. Does anyone know about this?