With multiple gaming conventions coming out during the course of the year, you are starting to see the variance they have become.  It seems to me that E3, once a mecca for all gaming, has been reduced to what the American audience supposedly wants, and this is true by what just aspired during the major consoles makers presentations.

It’s more sad than embarrassing. 

There are some good games to look forward to but now I can understand why gaming is in such a slump.

Or as gamers, do we have too high expectation for what these manufacturers and developers are actually delivering?

I think the expectations are high and we get upset when they try to appeal to a much younger crowd. There were a lot of good games announced as well. Plus a lot of games on the showfloor that aren't meant for conferences but would appeal to us.

Yes, I think gamers set their expectations too high. They want megatons every 5 minutes...

I think your right, I think we have come to have something formualted in our mind that every year X event is supposed to happen and if it doesnt, then all is lost.

That type of thinking cannot be good for the future of gaming.

E3 has gradually become less about the games industry and more about a niche minority of the gaming sector. I think shows like Gamescom, TGS and even Eurogamer Expo are gradually becoming more relevant to the wider industry. I think gamers need to realise that E3 is not as important as it once was and that other events are equally if not more important.

E3 should not be about games announced months ago. Where are the surprise? This was a recap of the last 5 months

E3 should actually NOT be about trailers and teasers and all that shit, it should be about new gameplay designs and games with new Ideas, why do we need a man/woman on stage if they're just going to show you a gameplay trailer of a game you already know how it will play? (Ala sequels , remakes...ect) , why not just show trailers?, I remember E3 was about this
"Let me demonstrate what we mean about (x) .. .so here is this giant enemy crab."
and then show new gameplay mechanics that are new to the way games are made or ideas, like attacking a weak point for massive damage HM,HM, like it's slogan says , its about innovation, not just trailers.
To me that WonderBook is a good example of demoing a new idea, but they dragged on it way too much, also that Pikmin one, but the E3 ones are just bloody trailers , and the microsoft ones are just embarrasing, they somehow confused the expo for teen show award or some shit, the whole thing was like a slap to the face of their fanbase, and gamers in general.

It's also about the mainstream audience and marketing. This is one of the few times that mainstream journalists pay attention to the core of the games industry.