Seems impractical for the similar reasons to those that killed the Concorde. Getting there 5 times faster is less attractive when it's 5 times more uncomfortable than a equal price ticket on a subsonic jet airliner.
The goal of suborbital flight is to address the thing that made the Concorde fail. It's not about speed. That's a side benefit. Not having to push air out of the way is where the savings will be.
That would be great if we were in the cheap energy go-go 1960s and we didn't have free instant communication.
This is nothing more than a stunt. It's another 450 foot yacht, or twenty seventh hypercar next to the horse stable. It's nice, for a negligible part of the population.
And if you think "savings" will lie in the shortest part of the flight... um, no. The paradox is that the Earth isn't big enough for that part of the flight to be much of a savings. Maybe if we lived on a Ringworld after the Fall of the Engineers.