Glojo, Coke, good points all round. As for UCAVs, it's the long argued choice between manned and unmanned. Perhaps once we could absolutely guarantee that they're completely immune to EMP, jamming, deception, etc, they could become a possibility for more mainstream ops.
Of course, no real pilot would ever (should ever) openly support UCAVs. We'll always think up more reasons why they "just wouldn't work".