It is surprisingly boring and disappointing to (re)watch old Disney classics at an older age.
I know Dumbo has an endearing story and an important message and all that but if you have no real nostalgic ties to it, is basically just a kids' cartoon. I can appreciate its status or whatever and it had some lovely scenes, but personally I kept being kind of distracted throughout. Maybe I will give it another go someday when I'm more awake. I'm sure I loved it as a kid though.
Also well yeah, the animation was really simple and cheap compared to Pinocchio and Fantasia and heck, nowhere near the beauty of Bambi, but I know that was intentional so whatever. I guess I just like it when it's more rich and beautiful and detailed.