RE: Is there any point in supersonic aircraft?

I would agree with you as Concorde and the Tu-144 are major human achievements.
But surely a aeroplane is successful only if someone buys it for quality and versatility? Concorde and the Tu-144 are both not in use now which shows that supersonic planes are not that popular. Maybe they should make a plane manufactured by Boeing-Airbus-Tupolev, as you said, this would definately boost the popularity of supersonic aircraft.
I now think that there are some basic points in supersonic aircraft due to your message.
Thanks,
Charlie