There was dumb humor, sure, but I personally love dumb humor. There was also physical humor as well, which I like when it is done well. I wouldn't say, though, it was all physical and/or dumb humor. I think there was plenty for everybody to enjoy.
I have to correct you slightly, though...
I've now been to see it three times. LOL! I went a few weeks back because I wanted to see it at least once in 3D. I have thought of maybe going to see it a fourth time, but I'm not sure. I try not to go back to same movies in the theaters too much because I don't want to over-expose myself, so to speak. Frankly, I almost never go to a movie in theaters more than once (even going twice is fairly rare for me and saved only for movies I REALLY enjoyed), so to go three times shows you just how much I loved it.