To steer back slightly to topic, It does seem to have a recent decline in sci-fi /fantasy. I never watch anything original on the Sci-fi channel anymore-its mostly junk. To be sure, fantasy has been given a big boost by LotR, but several high profile sci fi franchises have wound down or been of poor quality like the Star Trek movies.
There was some talk around 2001 after the release of Fellowship of the Rings and in the post 9-11 world about how fantasy was enjoying mainstream success because it was somehow a comforting to return to familar mythos in an uncertain world. There was quite a bit of discussion about this and how sci-fi seemed a little less relevant since we are now living in a world faced with what were previously sci-fi fiction problems, like cloning, bioterrorism, etc.
Whether this is true or not, I dont now. Surely the rise of reality TV has a big role in sci-fantasy declining profile on TV. However you could make the same argument for other genres like the hour long drama. New stuff isnt coming, and what is coming out is similar to what came before(I mean how many cop dramas are there nowadays?)
On the other hand, a bright spot has been the more wider "mainstream" acceptance of anime. Partly thanks to The Matrix, theatrical releases like Spirited Away and facilitated by Cartoon Network and the widespread growth of the DvD format. It seems Cartoon Network took a bit of hit from its animated competition last year (if you listen to the execs at Viacom and Nickelodeon) because it so embraced anime instead of original, child oriented animation. But Im glad to see more superhero (Justice League/Teen Titan) and anime stuff here in the USA.