Again we must stop thinking like a bunch of people that go there every other day. Most Disney Guests have been there very few times. For many this is the first time. To them the "filming" shtick is brand new. the scene shift device is brand new to them. Even the show is brand new to them and it is as interesting as it once was for us. When we get all fired up about why Disney doesn't change things everyday, we would be wise to realize that we are a minority in this scenario of entertainment.
I don't think a persons visit number should dictate how much things are updated, changed or additions made. A first time visitor is going to notice that a lot of things look old, feel old, etc etc. Some of the "schtick" that was good enough years ago, just isn't anymore. And it comes off as outdated and cheesy. A first time guest can and will take these things into account, especially when it comes to considering a return visit. If the place feels like its been stale for years, or at least gives that impression, than that is going to have an effect on a persons decision to return.
And lets not also forget that there are a lot of Middle-of-the-road Disney nuts. They don't sit on message boards all day praising or damning the place or the company, but they still do have knowledge of most things Walt. They may not know what HISTKPA stands for, but they remember the last few times they were there that MGM was rather boring and that the Indiana Jones stage show has been the same since they went there for the first time a couple decades ago. They want to go back, they want to re-stock their Disney souvenir collection, but whats the point? It was the same as it was years ago when they went last time. A look at the photos from the last trip in '03 confirms this, and hey, a few Disney vacations would make a nice down payment on a little cabin on a lake. And you don't have to ride a bus back to your hotel with a woman changing her babies diaper in the seat next to you.
I won't even go into the fanboy segment or the beyond-fanboy segment, the ones who already know exactly what the DHS expansion will entail.
But long story short, Change will bring more people in. First timers who are borderline if they want to go or not and spend the serious coin to go could be swayed big a new ride done on a grand scale. Infrequent visitors who tired of the place might reconsider returning with the announcement of something new. Whacked out chronic disneyators might close their copy of Roller Coaster Tycoon for a few weeks and find a job so they can fund a trip down to see the changes being made.
Just because someone may have never experienced something before doesn't make it a good thing. I've never had polio before, but I don't hate the inventors of the vaccine.
I'm not saying everything needs to go and all at once and I'm not talking a new E-ticket every 6 months. But constant evolvement, creating a dynamic atmosphere and culture will do nothing short of bringing new "guests" in and keep old ones coming back. Turning one-timers into multi-timers. It holds peoples interests, and when done correctly and with great pride, keeps them looking forward to the next big thing. And I'm not talking about the "magic" marketing garbage Disney has gotten good at in recent years. A truly strong company wouldn't have to force that crap down everyones throat constantly. But that begs the question...Does Disney still have the creative back bone to evolve and create like that or have they pretty much relegated themselves to shameless marketing to bring people in for one visit, only to have them leave disappointed never to return again?