Don't get me wrong, your conclusion is spot on. Getting there is the hard part.
Another factor is we live in a period in time where we have so much choice on how to spend our time, products that are personalized to each of our own tastes, that creates sparsity of shared experiences.
No longer is there a movie like Star Wars, that you could throw a stick and find someone who shares that experience. Now unless you're suckling from the teat of mainstream media, you need to go out of your way to find someone who shares your taste in film, music, art, games and ideas.
I'm honestly surprised there hasn't been an experiment adding a social component to Netflix.