Like it or not, Nintendo's not marketing to you during their press conference. They don't need to--they can count on you to keep up with news and releases on your own.
Except that I can't keep up with the news when there, you know, is no news. The last couple E3s Nintendo's conferences have usually provided more questions than answers. I can't follow the news if Nintendo shows a game for four seconds in a video and then doesn't reveal any other info and the game isn't on the floor. That's my source of news too. It's EVERYONE'S source of news so when they go on and on about one game and then just have a quick blurb about another that's it. Nintendo then goes quiet for another year.
The real issue I suppose is Nintendo being so damn secretive to the point that a game like Excitebots isn't even known about until it pretty much is on store shelves. Meanwhile all these big PS3 and X360 games are building hype and Wii fans are scratching their heads wondering what the **** is in the pipeline. They make us wait for a whole year to find out anything and then they focus on a bunch of bullshit that anyone who actively seeks out new information about what they're working on would never give a **** about. The whole thing seems neglectful to their most devoted fans.
The target market for non-games doesn't give a **** until like the damn thing is on the shelf. The Wii owners that want to know what going down months ahead of time are paying attention to E3. So why not give them a bone?
Though the real solution may be to just get to the point and show the games instead of going on and on about how awesome and rich they are. If they got rid of all the chart stuff then they would probably have the luxury to give each new game decent exposure.