That’s an interesting point, I do often hear about being near a rail line as being a benefit for property values, but you don’t usually hear the same thing about being near an airport. Although this might partially be because a rail line is something people would use more often than an airport.

I don’t have much of a personal opinion on this. I just thought it was interesting. You’d think this train with a fixed route, tons of seating, traveling multiple times per day, would be cheaper than a plane, but somehow it isn’t.

The pollution and noise pollution is an interesting point, that could probably be improved somewhat for air travel while keeping the benefits, if electric planes could be developed. I was in India at one point and the noise of just being anywhere near roads was terrible day and night, it wasn’t even necessary people just love to honk there. There actually was a kind of luxury hotel city (Aerocity Delhi) near the airport there, I guess if they’re already used to that much noise being near an airport can be valuable.

There is some advantage for cars and planes in that you don’t need to develop the whole land between the two points you’re interested in traveling between as much as you do for rail, maybe that’s where the price difference is coming from.