Case study: Netflix
The subscription streaming service Netflix launched in 2007 as a mail order DVD rental company. It is now one of the top 20 websites in the world, with over 300m members and around half of its library are original productions. In 2019 they received 15 Oscar nominations, which was more than all previous years combined (see Wikipedia).
What is particularly interesting about the Netflix business model, according to this HBR article, is the fact that:
Movie theatres
Sell individual movies to lots of different customers
Streaming services
Sell many different movies to individual customers
The key point is that sometimes it may be easier to estimate the average price per movie that people are willing to pay than for any specific one. And since the Netflix algorithm encourages people to consumer similar genres, this larger sample size helps. It also means that individual movies are less important to Netflix, so they can give them away for free. And also take more chances on esoteric pictures. Like Roma.