The Masquerade - Redemption, has three different endings, and you have to play through the entire game three times to get all three. Touch , as it were. However, it IS fun to play through action games a few times to hone your skills, as it were. While it is definitely the exception and not the rule, there ARE a few action games that are currently being developed that offer massive replayibility. Europa is one such game.
Action games are the number one genre of game that is being played on a daily basis.
Numbers don't lie. Those are all considered RPGs, and they can only be played online. Soon, games will be coming out like Horizons , which will focus more on role-play. Normal RPGs also have an online component, such as the Baldur's Gate series. I will, however, admit that more people are playing action games online.