the problem is not that you are not finding what to watch. The real problem is that there is NOTHING LEFT to watch.
their inventory sucks. Yeah, they have a couple movies, but chances are you've seen them all already.
Netflix is not a blockbuster/torrent/movie theater replacement. It is a TV replacement.
It works for people that sit down, select from the few series they are following, and press play.
It may work as a movie provider for the first 2 months, until you get to the point mentioned above; you've seen them all.
Many people (me included) aren't willing to spend sufficient mental energy on a decision based on what's available when we want to be entertained.
A related problem is that Netflix does a bad job of managing expectations, but we're working on that with tinj.
Give us a few years and we'll get to trousers too.