I don't know if this fits the thread, but why is soundstage so important to some people? It seems to me that when you have 2 speakers clamped to the side of your head, there won't be true soundstage. I realize there are electronic tricks that can be used so it sounds bigger than it is, but otherwise the soundstage is between your ears.
Some say open headphones provide better soundstage than closed but I think that's similar to some saying tubes provide a warmer sound (because they're warm?). Open headphones allow sound in but also allow some of the sound out and it won't be reverberating back into your head like a regular speaker will so I'm not sure how that widens or makes larger the soundstage. What, if anything, am I missing?