I know why the Concordes are gone, but I’m still not happy about it.
Flying on one was on my bucket list.
The US banned supesonic commercial air traffic over US airspace. That's why there was never a NYC to LA supersonic flight. British Airways and Air France had to go subsonic over the ocean.
In the 1960s I remember reading that all airplanes would be supersonic. Now it's 2015 and there is no viable supersonic transport in the commercial sector.