I read The Hunger Games last winter and felt the same way. Twenty of so pages in to The Giver, I did not want to continue. I wouldn't have if it weren't a part of the book challenge. Needless to say, I'm not chomping at the bit for Mockingjay.
I think I'm done with dystopian novels for awhile. It might sound silly to give up on the genre after a couple books, but I've also had The Handmaid's Tale on my shelf for a long time. Every once in awhile, I'll pick up and then immediately think, "I really don't want to read this." Plus, life's too short for books you don't enjoy.