Addiction.
My main gripe with video games is that they're addictive. Boring or not, they push you to play another 5, 10, 60 minutes... before you know it, you ruined your evening, and wasted your time and the next day at work...
Kudos to the artists, developers, psychologists who can build that. And probably I am weak.
At the end of the day, they are very successful in making me addicted, that's why i am staying away, that's why I am not a gamer.