It depends on how many hits they have. The bigger the hit the bigger money they will earn. If they have a big hit, they will play in bigger venues which will pay more. Also, if they have a hit it...
It depends on the store. On amazon.com it is only $153. But with gamestop.com the price goes up to $179.99.Also it depends if the game is brand NEW or used. Most stores make you pay over 100 bucks....