Concorde tickets, adjusted for inflation, often ran around $8-10k. No Concorde passenger would be taking the subway/train. They would use a fast private driver -- chances are they could even get some shut-eye in the car.
After too much international travel, I like the idea of taking a sedative and have your staff ship you comatose as cargo so you just wake up fully rested in bed at your new location.
I suspect this is a lot like surgery. Less anasthetic and more activity means you're physically healthier when you get done with the process, even if it's more painful.
The user experience would be like teleporting making an Uber feel prehistoric. When its that good it could be irresistible despite drawbacks like... chance of death and such.
So in other words you're travelling even faster. I'm almost certain that if Concord flew today you'd get express security (even "premium economy" gives you that for international flights). Also in some places taking the train is much faster than driving due to traffic.
