i've never had this delicacy which appears to be rare even in china, but i did have shark fin soup at our chinese new year dinner monday night. i didn't know that it was considered by chinese as one of the eight treasured foods from the sea, i just knew i'd never tried it. our waiter said it rarely gets ordered, perhaps once a month. it was tasty but not delicious.
buddha jumps the shark is an entirely different term of art.