I'm surprised Thailand has not yet implemented a "Club Mobay" scheme like they do in Jamaica. Arrivals queues in Jamaica are notoriously bad and it seems rather than attempt solve the problems, they've privatized and capitalized on the mess to make more cash. This seems like a perfect Thai solution to the problem as well. You book in advance of your arrival/departure for $80. You're met when you exit the plane and guided to a lounge and they take your passport and you can relax with complimentary drinks and food while they process your passport. then you're guided through luggage and customs. In and out in just a few stressful minutes, meanwhile your cabin mates on the same flight are sweating it out for another hour at the airport.