Comics are a dying hobby. Print runs are way down from the heyday of the eighties and pretty much all the people who buy comics are people in the 35+ demographic from what I recollect from reading an article on the industry.
Kids these day learn about super heroes from cartoons or movies, not from reading comics. Of course considering each book sells for $3 a copy, it can be an expensive habit to get into. When I was growing up, comics were like 50 cents and you could buy them from the magazine racks at grocery and convenience stores. At this point I'm just happy I can share the Young Justice cartoon with my kid. He's interested in 'reading' my comic collection, but the writing in them has gone adult as well - they're not always something I would be comfortable sharing with a 5 year old.
The Green Lantern has always been my favorite hero above anyone else including Superman, Batman, Spiderman, Cap, Iron Man, Wolverine, etc. So I'll be watching the movie with great interest. I hope it is a good movie and a hit, so they can make sequels. Would love to see Guy Gardner make a guest appearance in a future movie.