I am reminded of the game Dreamfall[1] where part of the backstory include a company putting on the market a lucid dreaming device, hence would trigger a decline of sales of traditional entertainment systems because why would you buy movies when you can dream anything you want on demand.

(Although the game backstory goes further with its machine being able to not only trigger but also shape and even download the contents of the dream, posing copyright and mind-control issues, but that's another thing :)

[1] https://en.wikipedia.org/wiki/Dreamfall%3A_The_Longest_Journ...