[tdrgabi]

But if all their customers want their garbage picked up today, or everyday, it won't work.

[dragonwriter]

More relevant to the cloud analogy, if all their customers wanted to purchase a large extra pickup (beyond their normal baseline) on their normal day, which is part of garbage service offerings, they wouldn't be able to accommodate it.

[Intermernet]

Aha, thank you for finding the flaw in my example! I lounge corrected ;-)

[Intermernet]

On any single day, they only have a set list of customers. This is part of the contract.