I know what you mean. But literally everyone seems to be genuinely impressed by the 3D, doing all they can to convey their enthusiasm without being able to actually show you.
The online games magazine I read daily, GameCentral, are a pretty jaded and straight talking bunch, and here's their impression after a hands-on trial this week:
However boring Nintendo's presentation was the 3DS itself was the exact opposite. The stereoscopic effect is superb, at least as good as in the cinema or using a 3DTV, and yet without the need to use any glasses or goggles at all.
Round-up of 1st-party games (those by Nintendo)
Round-up of 3rd-party games (those by other companies)
The video
here explains the machine's new features.
I've seen this up for pre-order for just under £200 on some sites like the one above, so I'm currently wrestling with account screens to put my name down. That seems to be about as good an offer as I'll find for some time so it's tempted me, but if they keep making it difficult for me to place my order then I might have talked myself out of it by the time I get the chance. (Edit: Pre-order placed. They don't have my money yet though so I can still cancel if I chicken out...)