Dr. Dre Beats

Ok, so I really don't know where to post this question. PC Audio seemed reasonable but these are essentially speakers so it's going here.

The new Dr. Dre Beats. I had the pleasure of listening to these today at the local big-box store at ultra-high volume because I guess everyone is deaf and there was no way to turn it down. Anywho. I'm referring to the noise-cancelling headphones in particular. The on-ear headphones sounded a little dark. The around-the-ear noise cancelling ones had a bigger mid-range which was quite pleasant.

And then I walked over to the Bose noise cancelling headphones and it was a guy just talking in on the demo and wouldn't shut up so I put those down.

I have no real experience with headphones but am looking to get into them here shortly. And semi-seriously. And by that I mean I'm not spending a grand on headphones. $300-600 is my limit. I'll eventually be running them off a tube amp.

So, any input on the Beats? Are they worth it for $300? They sure sounded good. And quiet. And as comfortable as I would ever need headphones to be. But since I don't know what Ultrasone headphones sound like I'm wondering if I'd be selling myself short.

I know someone will ask what kind of music I listen to so here it is. Everything from Sia and Natalie Walker to Ludovico Einaudi and Erik Mongrain. Remember, I want to eventual pair these with a tube amp so I don't know if that really changes anything.

Thanks for any advice/input.

John