That really only works if an attraction has unsold capacity though right? Otherwise you spend money convincing people to ride something they physically can't ride.
A case could be made that additions don't have to attract crowds to the park in order to add value and recoup costs, but Disney still has to get something out of it to justify the expense.
Yes, you're right, it IS stupid for Disney to do overlays on Space Mountain!
But seriously, Disney has been doing this for decades. You speak as if this is some unfathomable thing.
It's pretty much always going to be cheaper to upgrade an older attraction vs. build a brand new one. And unless they reuse Jungle Cruise's infrastructure it'd be a huge job to do something different there, and since it is a park original, you'd get quite a lot of pushback. Pushback that I'm not sure even modern Disney's ready to deal with.
And something tends to happen when attractions have been around for a long time. Once an attraction has been around for 50 years or so, it starts to become untouchable. And that's not just at Disney, that's at every park that's been around for awhile. If a ride can make it to 50, it's likely going to stick around. Now, some more than others. I don't know that the subs will make it to their 100th anniversary, for example. But Jungle Cruise is iconic in a way that even the subs, I'd argue, are not.
People may not come to the park
just to ride Jungle Cruise anymore. It may not be one of the most popular experiences. But it's one of those things that makes Disneyland
Disneyland. Because of that, they can't just gut the thing. Even the company knows that. "Maybe later they'll do it," you say. Sure, maybe. But we're not there yet, are we?