when my blade was written off (other party admitted total fault) i got showroom price for the bike - not much less than it was new, despite it having about 5000 miles on it and being 6 months old.
the other insurance were obviously liable. i had to send photos to show the condition it was in and i got top money back for it.
the whole process was easy, no hassle at all
it was a 10 grand bike not a 30 grand car though so dont know if it differs