It's like this. I hardly listen to classical music with headphones or speakers... I like classical music, but that's it. I listen to EDM more often. However, when it comes to live performances, classical music is something else. If the venue is good as well (think Wien Staatsoper) the music touches your soul and time flies by. My most expensive headphones were Noble K10s and they did sound damn great but no, nowhere close to a live performance of classical music.
As far as I know, some audiophiles claim that their hundreds of thousands USD worth sound systems sound good as live performances but I have not had a chance to hear such good systems, yet.
That's what got me interested in the Vega. How Jude describes it in the Head-Fi TV episode is like it is able to get closer to giving you the feeling of a live performance. There are of course obvious physical restrictions with IEMs, but it seems like technology is evolving in a direction I really like the sound of (pardon the pun).