YES!!
I conveniently let my husband continue to think our current trip is about the same cost as several trips ago... The last time he knew details, it was 2010, and we were a family of 4.
Why it hasn't dawned on him that we have 2 more kids, our older 2 are now considered adults to Disney, and prices have just plain gone up, I have no idea. But I would love to have one of those receipts in case he ever starts actually thinking this through.