It's not just that more ppl. are going, but more in my opinion is how Disney keeps cutting
back and running at less and less capacity. We used to always go first week of Sept., the last couple years we've gone the last week of Aug. Our most recent trip, they were only running 1 side of Pirates, so sent every other boat completely empty making our wait almost an hr. (something that not long ago would have basically been a walk on for us during the time we go). They only had 1 bay at Cosmic Rays open, something we've never seen (this was during prime lunch time), didn't run Space or Thunder at capacity and photopass ppl. were basically non existent at the water parks (not to mention the lack of direct bus service to/from them). These were just the things we could see first hand and remembered, and I'm not that observant of a person, it was just so blatant, who knows what else. No nighttime parade, more pay extra party events, less extra magic hours etc.
The motto of Disney the last several years in my opinion is raise prices, provide less. I get it's a business, but for us that's the difference we've noticed.