Trying to make money as a third party distributor is just wrong. I really hope that's what babarock meant. You're absolutely right that the there's nothing wrong to ask for money for the effort that went into making the music from each person that enjoys it.
After reading all the effort a site like http://bandcamp.com goes to be an effective digital distributor of music, I retract this statement. There's certainly a lot of digital-distribution related expertise that's worth giving up a 10-15% sales cut for.
