Look at this. Some seller is selling the AC5300 for $10,000. Talk about price gouging. How can Amazon allow this?
http://www.amazon.com/gp/product/B0167HG1V6/?tag=snbforums-20
Probably just a placeholder value, as they didn't know the actual price at the time they added the listing. It's like how one of our suppliers kept entering 11/11/2011 as the ETA for products for which they had no idea about their actual ETA, and there was no way of entering "unknown" on their interface.