ghetto or gangnam?

Here's an interesting question that's been wending it's way around cyberspace lately: 21st Century Science Fiction and Fantasy: Ghetto, or Gangnam Style?: Science fiction and fantasy creators and fans were originally outsiders… misfits who got no respect from the mainstream… who stood on the outside looking in. How much has changed in today’s world… a world in which popular culture oozes SF and fantasy elements?

IMHO, Science Fiction and Fantasy are mainstream now. We live in a SF/F world with our cell phones, aka mini super-computers in the palms of our hands, quantum dot televisions, privatized space travel and all the rest. Almost all the highest worldwide movie grosses have been in the SF/F ouvre, e.g. Avatar, Marvel's The Avengers, Harry Potter and the Deathly Hallows Part 2, Transformers: Dark of the Moon, etc. Conferences like Comic Con and their imitators are rampant. Many of the most popular TV shows are in the SF/F genre, such as Big Bang Theory, Supernatural, The Vampire Diaries, Once Upon a Time, Person of Interest, Revolution, Beauty and the Beast, Arrow, depending on which list you consult.

Even if we just focus on fiction, what do we see?
What were the best-selling books in 2012? Yep, you guessed it, many science fiction and fantasy titles, including The Hunger Games, Catching Fire, Mockingjay, Heroes of Olympus: The Mark of Athena, The Hobbit, A Game of Thrones, The kane Chronicales: The Serpent's Shadow, A Dance With Dragons, Abraham Lincoln: Vampire Hunter, A Clash of Kings, A Storm of Swords and a lot more. And that doesn't even include the whole Twilight vampire series which was super hot in 2010 and before, and the whole Harry Potter series which was white-hot in 2007 and before.

Here's another indication SF/F has become prevalent: Doris Lessing won the Novel Prize in Literature in 2007, partly for her "space fiction"--as she put it.
So that's my 2 cents, SF/F is as popular as Gangnam Style. :)

What do you think? Ghetto, or Gangnam Style?