Is there anyone left?

Is there really anyone in the world left who believes the spam that comes from Nigeria or where ever offering a cut of millions if you just help them out? I mean really, is there anyone left computer savvy enough to be on e-mail but dumb enough to respond to that crap?  The horrifying answer I must come up with is yes, or else why would that junk still fill my spam folder.  Which means there is at least one other person in this world dumber than George Bush. How depressing.