It doesn't seem like a viable thing. Is there really enough demand for a supersonic commercial flight with the seating capacity of a regional? The company claims that major airlines have already committed to purchasing the yet-to-exist plane, which begs the question "how committed?" I would highly doubt that without a demonstrator specifically for the passenger version, that any airline would put down any amount of money. I have been known to underestimate the foolishness of leadership, so maybe there is an inked deal as opposed to a handshake for x number of planes, though only at y price.
In concept, supersonic aircraft are cool. Going fast is really neat. I think those are the feelings Boom is banking on, which is sad because I feel that their airliner is vaporware.
I set my car to YOLO more by pointing the vehicle roughly the direction I wish to travel and then dropping a brick on the accelerator.