How come the Monsters Inc ride doesn't have any merchandise?

When the Buzz Blaster ride came out last year they had shirts and all kinds of stuff. But so far for Monsters I've seen nothing! I was looking forward to it too since it's my favorite movie.

I was just wondering why they decided not to release any merchandise of any kind for the movie/ride when it's doing so well, every time I go the line is like 50 minutes long.