Power,internet, and bringing a job with you

[HI_Someday]

I'm trying to understand WHY these ISPs aren't expanding their capacity to meet demand when there is so much potential for them to grow their business? It just doesn't make sense that if they are in business to provide a service, charge for it and make a profit (they would be out of business if they didn't) why wouldn't they meet the demand and make more money? Anybody have any insight?

This should go without saying but please don't include mind control, weather manipulation or poison death rays from satellites as a reason. [8] Thank you.