It's an interesting discussion. My first thought is to consider other technologies that overtook things in similar ways. For example theatre was modernised by cinema, which in-turn found its way into homes enabling people to have that theatrical experience from the comfort of their living room; and most recently mobile devices meant theatre like entertainment wherever people wanted. This has been a process of nearly 110 years. The interesting thing is that none of these changes has completely destroyed one that came before. Theatre still exists, with the long lines around Times Square to get discount Broadway tickets, suggesting it still commands a good following. Meanwhile, traveling performers in comedy, music and illusion frequently perform to sellout audiences. Cinema meanwhile, whilst having operators report they are at times struggling for audiences, is still the evaluator movies are judged by in terms of their box office revenue, which only seems to be increasing. My thoughts from this are, that historically forms of entertainment have rarely been superceded by new technology, instead they become a new form in their own right.
Stories like The Matrix and Ready Player One, usually rely on an additional reason for why the technology was so accepted. More often than not it is a dystopian view of the world after a major catastrophic event, or at a time were space or resources are incredibly scarce. Without that they would face a difficult question of: well why would you do that? So if we all happily live our lives fully in a virtual world, we probably have bigger problems than Alton Towers not existing anymore.
Now, could we see better VR technology making its way into the theme park industry, or as separate "midway" attractions? I think we could, and for me there are exciting prospects. It allows for certain world building that cannot be feasibly done with physical sets. Then if you add interaction, whole new experiences. Imagine a VR scare maze where you are being chased by some hideous monster, requiring you to hide from it, or distract it by interacting with the environment - all leading to your brain really believing you are at risk of death or injury, in a way that an actor in a costume could not.
But theme parks only succeed with variety. So I don't see them, or the physical rides we have now, disappearing anytime soon.