The problem is that the "Fourth Estate" is, by and large, non-existent for certain sections of the entertainment industry. If you're a comic fan there's a similar situation--there's tons of sites, tons of content, but every interview always reads the fucking same: "Oh we've got some great stuff planned, but we can't talk about it," or "Man the artist/writer is amazing, I've always wanted to work with them!", and then the book comes out and the story's garbage or the art's terrible. It's gotten so that I pretty much rely on a gossip site to get all my (surprisingly far more accurate) news.
Gaming's about the same. And all this discussion and most of you have barely scratched on why.
Here you go. The reason there's very little real journalism is simple;
we are the hardcore, we are the minority, and they don't need us.
Now there are other major factors, but it pretty much breaks down to the websites needing the companies more than vice-versa. It was different when there were magazines and the information was available for anyone who went down every aisle of the grocery store. Now the only way to get information for the most part is to visit a website and really, who has time for that, except the core gamers?
At the end of the day, games (and comics, honestly) are set-up in a different way from other forms of media like movies/music, and that's what allows the companies to exploit the journalists. For one, the majority of their profit comes from people who will never check out a review, or discuss games with anyone else other than like-minded people. Word of mouth can sink a movie over the course of a weekend, something that simply can't happen with a CoD or a Madden, even though every year there are more gamers talking about how "all they did was update the roster/change the maps a little".
And music? LOL. Leaks of albums happen weeks before they come out with regularity. It takes the most extreme amounts of effort to keep this from happening, but the end result is most artists don't try and thus before the album ever hits store shelves people already know what they're in for. With games? It's a rarity, and when it does happen? Someone is fired within a few hours, making occurrences less and less likely.
By the by: All the people using the word entitled in this thread? Slap yourselves. You are part of the problem. It's not "just games", it's a system in which we don't hold corporations accountable for their actions and the products they create. When you spend money on something you ARE entitled to know about that product. You say "wait until it's out"? What an ingenius idea! Except they NEED our pre-orders (and they know it), and use them as indicators of how a product release is going/might go, so it honestly makes zero sense for them to keep us in the dark about anything. Other than the fact that we let them.
Apologies for any syntax errors--I wrote this at 6AM, and no I have not been to sleep yet.