[bogwog]

CS is basically an alternative to the Quake formula of arena shooters, yet both types of game are still arcadey arena shooters.

Games like Arma can't really be compared to CS. They're completely different games with only superficial similarities (same camera angle, and the presence of guns).

> Maybe it's part of getting older, and if we're still going to play video games they need to be more of an extreme technical challenge for them to be fun for us.

This is definitely a factor. Games like CS, Street Fighter, etc are highly skill and knowledge based, but lean very very heavily on reaction times and stamina.

Even though there's absolutely nothing stopping older players from competing in those (and there are many that do), I think most people just don't find that's something they want to bother with as they age. I'm still in my 20s, but I'm finding the intense pace of CS hard to keep up with compared to when I was in my teens, even though the game hasn't changed (if anything, I'm more skilled today than back then).