Also don't forget Bicentennial Man.

Please, may I? Please please please?

Still, you're right.. [Dick] has a halo effect that's quite out of scale with what other authors get.

Perhaps his estate is easier to deal with than either the Asimov or the Heinlein Estate? The Heinlein Estate is pretty determined to protect the best interests of its trust and as far as I can tell, they don't think nightmarishly awful films by hostile directors really serve the books well.