Twilight is a huge seller and one might be tempted to despair.
But don’t.
It is still amazing the number of Tolkien references one finds in Twitter and on Facebook. Tolkien! Not J. K. Rowling. (I would assume she has more references, but she still has movies coming out. Tolkien is still amazingly influential.)
And for all the idiocy of Twilight, I’m sure there are many readers who wanted something better and will continue to look for it. True, they will be misled by a host of books trying to imitate the worst features, but eventually another Rowling or two will come along.
And Tolkien will continue to be a lighthouse in every scifi/fantasy bookshelf in the world.
There was a time when “Swords and Sorcery” was a real minority report among readers. It was mostly pulp fiction. Tolkien changed the world forever by both transforming and popularizing the epic fantasy genre. He and Lewis had insisted people were hungry for it and, while nothing about Tolkien resembled an entrepreneur, he did in fact find a new market.
Gary Gygax has said he was expecting to market D&D to a small group of wargamers. He two broke into a new market, in large part because he had Tolkien to make a way for him.
Yes Twilight has been successful, but it is not going to be here a half-century later. No one is going to vote for Meyers as the author of the century in 2101.
It will pass.
Instead of judging the world by the popularity of Twilight we should look at the enduring popularity of Tolkien and also his better innovators like Rowling.
Just my opinion; but you know what an optimist I am.