A) filmability - Gateway would be fantastic, but expensive to film. Counter-point would be "the Space Merchants", which would be "cheap" to film (but perhaps not please the sponsors.)
B) risk. PKD stories have a proven track record. A E van Vogt not so much (as far as I know). (although Weapon Shops would be great, albeit political bait.)
On the other hand its now becoming possible to film some of these stories in a non-cheesy way (think Dune) so I expect we'll see more of them.
A) filmability - Gateway would be fantastic, but expensive to film. Counter-point would be "the Space Merchants", which would be "cheap" to film (but perhaps not please the sponsors.)
B) risk. PKD stories have a proven track record. A E van Vogt not so much (as far as I know). (although Weapon Shops would be great, albeit political bait.)
On the other hand its now becoming possible to film some of these stories in a non-cheesy way (think Dune) so I expect we'll see more of them.