I don't get excited anymore when I go, but I still love the place. If I want to experience the excitement of going to DL as a kid, I have to visit WDW.
One disappointment for me over the years has been the unravelling of Tomorrowland. It used to be the most exciting place in DL for me back in the 80's. Today, it's just a piecemeal section of the park that is on the slow road to recovery.
Personally, I like WDW's Tomorrowland theme much better. Although, I am not pleased with its recent low-quality attractions like Stitch and Laugh Floor.