The inside of BlueHouse, which opened at JFK International Airport last year. Gabbi Shaw/Business Insider BlueHouse, JetBlue's first airport lounge, opened at JFK in New York in December. As a JetBlue credit card holder, I decided to pay a visit. It was spacious and well-designed, but I didn't spend enough time there to justify the $79 cost. Rejoice, JetBlue lovers: There's now a lounge where you can eat, drink, and be merry while waiting to board your flight. BlueHouse, the airline's first...