I've tried shtter glasses long ago.
They're pretty cool, but they're not a necesssity. More like a racing wheel but less popular. And really they've never been that big of a selling point b/c game have to be written to be compatable and the market is too small. Now if video cards came packaged with them with built in hardware support, maybe then they'd take off.
But they're too overpriced and under supported to be worth it.
Oh, and yes, they work pretty well at emulating depth.