Prejudice against speculative fiction

do you think that there is prejudice against fantasy and science fiction? (Fantasy, Science fiction etc')
If so, why? Is it justified?

>>11
well let's see, there's H. G. Wells, Aldous Huxley, Ursula K. Le Guin, Stanislaw Lem.. am I missing anyone important?? George Orwell and Kurt Vonnegut don't really count, anyone else is probably worth ignoring/only appeals to boring nerds.