Does it strike anyone else as odd that DC (and Marvel) doesn't use public domain characters more often? Why is this? Is there a legal/marketing/rights issue I'm not aware of?
We have DC original adaptations like Frankenstein agent of SHADE, Uncle Sam & The Freedom Fighters, and of course things like Atlantis and the Greek gods get plenty of use as part of other (DC exclusive) characters' settings. And every Christmas Santa Claus shows up in one book or another, and Dracula usually shows up somewhere during Halloween. Even Sherlock Holmes makes the occasional appearance.
So why don't we see more public domain figures brought into the DCU and/or used more often? I mean, look at Grant Morrison's Klaus; is anyone going to seriously tell me that *a* version of Santa (or some other public domain figure like Paul Bunyan or whoever) couldn't fit in with the JLA?
Is this sort of thing a good idea? Would it be a benefit to DC if they took a couple public domain figures and really tried to push them and build a DCU mythology for them, in the same way Marvel has built a unique franchise around Thor and Boom! has around Klaus? Or would it be a waste of time that DC would be better off dedicating to their own original concepts and characters? If it's a waste of time, why is that? Many public domain IP's are deeply entrenched in our cultural awareness, while a brand new hero is going to have to build a rep from the ground up and will struggle with sales even if the quality is fantastic (such as with Naomi). Likewise if it's a good idea, why?
Thoughts?