In my experience, gamers, like most people, are not good consumers of media. We/they draw from a very narrow and shallow trough of bad genre fiction and action movies. There are redeeming things about bad genre fiction and action movies. In the case of action movies, a LOT of redeeming things. But when it's all we consume, we have no palate. It's like eating Taco Bell every day.
But that's not the reason I get cranky.
The reason I get cranky is because most designers draw from that same trough. The whole thing becomes a circle jerk around a pile of Tor Fantasy and DVD copies of Broken Arrow. Things are changing, and this forum is actually a pretty well rounded group. For evidence of that, check the DA2 thread- people here seems to really dislike it for being dumb*, among other things, while reviewers mostly really like it (most reviewers are dumber than most designers).