Yes, I would agree. Or at least a very hefty discount.
It will cost quite a bit to get that sorted out or be a lot of work if you decide to do it yourself.
The boat is by no means dead. You just need to sand that part down, all the way to the glass, let it dry out. Probably for an entire off season indoors maybe with some heater fort the initial part to make it quicker. Then build it back up again, probably with some water-tight epoxy and paint it.
I keep mine (also a Launch SSV, but from 2001) in the water all season long, but of course I have coated it with 5 layers of epoxy paint to keep the osmosis away.