I think now they can extract $120 in subscription fees, back then they might have been able to extract $120 in each person buying 4 CD's a year for $30. My gut

I think now they can extract $120 in subscription fees, back then they might have been able to extract $120 in each person buying 4 CD's a year for $30. My gut feeling (that might be completely wrong) is that the total value extracted probably stays roughly the same or goes up with an increase in disposable income.