[signatoremo]

Boom isn’t trying to do something completely new. Concord was in commercial services for many years. Benefits and shortcomings are well known.

OTOTH, there was never a rocket that could land, only suborbital prototypes. Shuttle doesn’t count since it’s reusable in name only, as it still cost substantial amount of money and time for refurbishing. In fact there are still no other reusable rockets, seven years after SpaceX did it for the 1st time.

[pclmulqdq]

I didn't realize that the Concorde was a private jet. Also, I'm not so sure that SpaceX has managed to achieve reusability (launch turnaround cost) better than end-of-life space shuttle yet. The space shuttle did take a lot longer to work out the kinks than falcon 9, but it was also a much more complicated vehicle.