Just compared prices for Vegas trip from BWI - checked Priceline, Expedia, and Orbitz. Prices similar, but Expedia was cheapest. Not sure exactly why greencap likes PCLN so much. I always check PCLN and haven't used them yet in 7 years of frequent traveling. I like Amit's analysis, but would rather look into PUT options instead of shorting. Shorting can be painful.
The Short Case on Priceline [View article]