Valve solved the attention problem using hardcore gamers who love a fat backlog
gamesradar.com
gamesradar.com
I will know the movie was 'not for me' once I fully paid for it and watch a good chunk of it... and you would be a fool to trust those beautiful trailers.
Steam has curators... but they are not to be fully trusted even though it helps detecting real scams.
While I am thinking about it: it is REALLY complicated.