For every geeky larp film you pull out, Im sure i could find a geeky DnD movie. Also,m there are plenty of DnD people that cant act back to normal after their game.
Larp is fun because it's like DnD, but more real. The emotions, th thrill of combat, it is more real/ But on the other hand, you need to create this suspense of disbelief for yourself, because we can't create high end particle effects in real life, right?

So I agree its not for everyone, but i feel the amount of hate it often gets it also undeserved.
Like I said, Larp is the new thing to shit on instead of DnD. It gets EXACTLY the same cliches, the same nerd images, the same jokes.