Two completely different market segments - comparable in only a few small areas.
Concorde ended up filling the only market niche that it could satisfy.
That is;
- Limited duration sectors
- Mainly over ocean
- No re-fuelling stops
- Good on-time performance - because each aircraft generally only did one flight per day and overnighted at the eastern end of the service sector
- Scheduling to suit the very small niche that it satisfied
A wonderful aircraft but it was never going to be successful on really long-haul.
As soon as you start eating into time saving with fuelling stops then the advantage disappears
Especially when coupled with (probable) frequency of service
Nobody in Sydney wants to wait three days to catch Concorde just so they can save six hours travelling.
Concorde ended up being a biz-jet for those who couldn't afford their own