The Avanti is definitely still around, and the pilots I've known who fly them seem to like them pretty well.
As for the Starship, ah, such a sad tale.
Certificated aircraft of that class weren't commonly made of composites (in the main) and the Starship was
breaking new ground. She was overbuilt, much heavier than Burt could have done, given his potential, but I guess
that was the price paid for certification with a relatively new form of construction.
The resulting performance for the price just didn't add up for a lot of folks, and they moved up into jets,
or back into a King Air. At least, this is what one of the Raytheon guys in Little Rock figured.
The lessons learned have gone into some of the newer Beechcraft planes, so it was not all in vain.
I did love those lines, though.