I think the underserved market secondary idea has some serious traction if done right (reliable, frequency). EWR, LGA, JFK, LAX, etc at rush hours are a nightmare. I used to commute to NYC, took me longer to take a cab from LGA to JFK than my commute flight to LGA 😳 In another life used to drive 25 miles further to MKE than ORD because the drive was quicker and the airport so much easier. Those big market airports are not getting less crowded either…