I have decided to fly to/from Boston. I would rent a car there. In that scenario, how does your advice change, regarding airport hotels. My priority is to stay at a Boston hotel next week for one night - I would have to leave for the airport early to catch a 6 AM flight (eventually onwards to Aruba). Coming back 1 week later, I will arrive at midnight, and then I will stay at an airport hotel for 2 nights.