The amount of storage each customer occupies has probably gone up considerably in the same time frame. I know my HD size (and backup usage) has quadrupled over 10 years.
And don't forget that the cost of salaries, rents, electricity, professional services, marketing and well, pretty much everything aside from bandwidth and hardware have gone up. In some cases rather dramatically.
The amount of storage each customer occupies has probably gone up considerably in the same time frame. I know my HD size (and backup usage) has quadrupled over 10 years.
And don't forget that the cost of salaries, rents, electricity, professional services, marketing and well, pretty much everything aside from bandwidth and hardware have gone up. In some cases rather dramatically.