Firstly, I agree with Ygern, Voyager sucked the big one! My favourite Star Trek show has to be Deep Space Nine, even though they did reportedly rob the idea off Babylon 5
I take on board everything you say about the vampire genre, about Anne Rice's Lestat and Buffy being the main cause of the influx of the vampire genre, our deepest darkest fears etc. But I think there is probably another underlying factor as to why they are being made, what it is, I don't know and can only speculate (not here as it's not a conspiracy thread). For instance, when people were watching the western and UFO genre movies they had no idea of the communism metaphors. It's easier to analyse these things looking back on them, so maybe in a few decades some smart Alec expert might know just why there was an influx of the vampire genre in the early 21st century! I must take a look at that link as well.
I would have to disagree with you on the vampire genre being silly though, I enjoy it, well most of it, I hated Buffy, but liked Blade, Stephen King's Salem's Lot, John Carpenter's Vampires, Angel (was darker than Buffy) and now True Blood. I know the vampire genre is not Sci-Fi, rather supernatural, but heck, it's my vice! I always loved horror movies and shows, when I was a believer they used really frighten the bejesus out of me (I'm still human), and still do, but not to the same extent, it takes a serious horror movie now to creep me out. I was a believer when I first watched the Exorcist and I was totally freaked out over it. Year later when I was more logical about things (i.e. atheist) I watched it again and actually laughed at how ridiculous the whole concept was!
On another note, is there anyone watching Stargate Universe, it's very good I think.
Another Sci-Fi show I must get around to watching is Farscape, it's supposed to be excellent...