I never understood why the Air Train didn't originate from the N train at Astoria Blvd. That's not far from LGA and can be configured to go down the middle of the highway there. If I go out of LGA I usually go to Astoria Blvd. and take the M60 bus. Sometimes, coming back, I just stay on the bus to 125th Street and switch to the A train uptown. Only politicians would make the trip longer and harder.