Dota and LoL require quite abit of skill in terms or having to press buttons at certain times, and learning how each champion interects with one another and what their move set does with certain item builds etc, to learn the game at a decent level I would say well over 500+ games need to be played to be considered mediocre.

That said, they are two of the biggest games, bar starcraft, in the world at the moment and net people alot of prize money and fame.

But yes as you said each to their own

I prefer multiplayer, testing skills and playing and reacting with other people online. Single players campaigns are good, don't get me wrong, but they don't stimulate that competative side of me, it's a downside sometimes, games are made to be played for enjoyment and fun, but people have different versions of that aswell.

Glad to see people out there that enjoy gaming though, I feel it's becoming more socially acceptable.