Well remember, its based on books that were popular with geeks for 15 years before it was a show. "Muggles" only got into it because it had Dragons and Nudity.
1- What are "books"?
2- Dragons and nudity are an awesome combination, but still not enough to get me to watch
3- Regarding the source material, that's exactly the same reason I don't watch The Walking Dead (cos I read the comics when they first came out and the show just can't compare to that awesomeness).
4- The world needs muggles; it makes us geeks more amazing by comparison