You love comics, and you won't admit it. You like the Batman: The Dark Knight movies? Do you enjoy the Teenage Mutant Ninja Turtles? How about the Jim Carey movie The Mask? ALL BASED FROM COMIC BOOKS. So was The Tick, Spawn, Tales From The Crypt, 300, Blade, The Crow, Kick-Ass, Men In Black, V for Vendetta...ect ect
BUT, this is more about the money that can be made with the books themselves. A copy of The Walking Dead #1 just sold for $10,000
Now before you run out and drop a couple thousand dollars on books in hopes of making a ton of money, note that this book was put out on a smaller publisher, with no intention of exploding into the biggest comic franchise of the decade. There were not a lot of these books printed, and there is a very high demand from people who don't read or collect comics, they want to buy it because they like the show.
There is money in them hills...but you'd probably stand a better chance playing the lottery while drilling for oil in your backyard...