So we've been home almost a month now, the post-Disney high has worn off. And... I confess... I'm somewhat regretting our trip. Oh don't get me wrong, we went, we had fun, we made memories that we'll cherish but... honestly? I don't feel it was worth the money. I'm left now with the knowledge that our kids would have had just as much fun anywhere else, for thousands of dollars less. And... it's pretty disappointing. I really wasn't expecting to feel that way.
Here they are missing one of their favorite theme parks that's just a small local one, asking when we can go back. Not asking when can they go back to Disney, no no, they want to go back to this small one. That now we're too Disney-broke to take them to. I mean, we took our son to the local fair today, and if I were to be honest with myself, he had far more fun on the rides at the fair, than he did Disney. I think because it's just smaller and not as overwhelming sensory wise.
Has anyone else ever felt like that?
I haven't felt like that, and I'm sorry you did. I have regretted little things that we did or didn't do, but not the entire trip. One trip, I lost (I think it was stolen out of my backpack, actually) my entire wallet (containing tickets and cash - extra things I shouldn't have been carrying around in the first place) and I never got it back, not even a bit of anything was turned into Lost and Found. It ruined the last several days of our trip for me (and put a damper on everyone else). But I didn't regret the trip.
Before we started taking the kids to Disney each year, we used to go to the beach. That was just about as much money as going to Disney (on a budget), so I decided to change our summer plans! My kids may have missed that for several summers - I don't know and never asked

We have DH's family in Florida, so always combined with a trip to visit them.
I don't know where you stayed or where you ate, or the type of tickets you bought, so I don't know how your money was spent. Like someone else mentioned, it sounds like you spent beyond your means.
Before we were DVC owners, I put money away, bit by bit, for our trips as well as buy tickets ahead of time, and basically budget everything. We only did one or two table service restaurants. I definitely try to keep within a budget. With 4 kids, we always drove, stayed at the value resorts and offsite hotels with free breakfast/happy hours, brought snacks into the parks, etc.. Disney can be done on a budget. If I can afford to buy a ticket or several before a price hike, I think of it as an "investment".
Maybe your kids know that you spent more money than you wanted, and are thinking it is something they will not get to go back to, even though they had fun. Kids are pretty easy, and usually like vacations and family outings, period (until they reach a certain age...).
Don't forget that you had fun and made cherished memories...priceless!!