Whats the deal with "Priceline.com"? 'round trip airfare for $109.11?

Whats the deal with "Priceline.com"? 'round trip airfare for $109.11?
I know with Priceline, you can name your own price but the main question is will the airline accept it. It's like a bargaining game, you name your price and the airlines will either give it to you or rejected it. When you fill in your own price you can put anything down from $1-$100 but what airline will accept $109.11 for one roundtrip ticket to China?
Whats the deal with "Priceline.com"? 'round trip airfare for $109.11?
they need all the business they can get but damn those are good prices.
they need all the business they can get but damn those are good prices.