I don't think you are alone at all in not liking ToonTown - I have a feeling many people agree with you - BUT I have to admit that I really like it! I am 41 years old and have no kids and I still like it! Isn't that sad?
First of all, I have found some of my best souvenirs at the Gag Factory in ToonTown. I think that because TT is so far back in the park, a lot of folks don't go back there and so the Gag Factory carries things that have sold out in other stores in the park. Also, I love Roger Rabbit's Car Toon Spin - it's one of my favorite rides in DL. I've also taken some of my best pictures of friends in ToonTown. I love the shapes, designs and colors of TT and the wacky feeling of it. I love knowing that there is a place I can always go to meet Mickey if I can't find him anywhere else. And, even though it is hard to notice things when there are so many kids running around and TT is so crowded, there are SO many little hidden details and gems that you don't see unless you are really paying attention. I mean stuff way beyond the manhole covers and the mailboxes and the TNT thing. There are jokes inside jokes inside other jokes. Some of the stuff I had never even noticed in the 15 years ToonTown has been around until this past December, when I was roaming around in TT by myself in the rain. I kept saying to myself, "Wow! I never knew this was here!" Again, it is hard to see these things when it is usually packed with people. And you have to be the sort of person who is really detail-oriented to be looking for things, but they are there.
I have a feeling I am in the minority, but I actually think TT holds some of the best DLR details and hidden gems out of all the lands in DL.