Not really. If they see an effect on the gate, they will adjust their strategy. They'll add free dining again (assuming it's gone for a while), they'll offer other promotions, etc.
Lots of families will be saving up to go and will take your place. Plus, they're likely to spend more than you at the parks.
Until they see a dip in ticket sales, they'll continue to let prices rise.
You've been here long enough to know that this thread is the same as the thread when
ticket prices went up last year and the previous year, etc., etc., etc. It's also been 10 years of people saying that the parks are too busy to enjoy. Yet, they keep getting busier and the prices continue to go up.
Price elasticity of demand.