Where do you buy your music?

If you are one of the majority of people who get their music at a warez site, Soulseek or torrent, than this argument has no sense. But if you are buying your tracks, than I would like to ask you a question:

Where you by your electronic music?

Talking to label owners I found out that most of their sales come from Beatport, which is not a secret, some from Juno, and a small part from Trackitdown.

What about other stores?

Have you ever bought a track from Audiojelly, Beatsdigital or maybe Nowtracks?

Those stores have the lower prices, the Beatport has the highest, and still, most people shop at Beatport?
I get the idea that it has something to do with the Beatport criteria for labels, but if you know which track you want, why pay more?
Another question is:

Have you ever got a link to a track on your Facebook or Myspace account, from an unknown producer, followed the link to the store, and bought it?

Or are the charts all that matters?

I would really love to get comments on this subject, and many of the people that are into music business will love it to.
So, I hope that somebody will answer at least on of this questions, thanks.