When you employ a freemium model, a small percentage of your customers will generate a significant part of your revenue. This is why you must offer expensive tickets and merchandise for these diehard fans.
Please read this article by Hany Nada on allthingsd:

Music for Nothing and the Fans for Free

This is why Bon Jovi can sell [...]

Once upon a time concerts were cheap. Three, four and five dollars, you’d go on a whim, for the experience. That was the genesis, in San Francisco. Get high and dance. Then some acts got famous, the Fillmore brand spread to the east coast, and in less than half a decade the whole country was [...]

Album: Feist "Metals"
Sales this week: 10,222Sales last week: 15,359Percentage drop: -33%Weeks on chart: 3Chart position this week: 35Chart position last week: 22Debuted at: 7Cume: 63,666
I want you to read this article from today’s "Guardian":

"When Bands Fall Off Cliffs"

For those on mobiles or just too lazy to click through, the subtitle is:

"You sell a couple million [...]

I used to buy my records at Granny ‘N Grammy.
I know, I know, the hipsters went to Rhino, on Westwood Boulevard. I shopped there too, and met Harold and got insulted by Jeff Gold, but I found the promos better at Granny ‘N Grammy.
Actually, NARAS made them change the name, to DiscConnection, as if somebody [...]