Because I don't see the need to use one, except in the extreme rare case like this one. I find it annoying that they expect me to buy one.
Supply friend with favorite beverage or meal
Connect shiny new Mac book pro to friend's computer
Install over network connection
Or do it at work. Or have someone rip the ISO and transfer it through the cloud. Or any number of other methods. Was the economic value of the time you spent arguing with Adobe staffers less than the cost of a workaround like this?
Or that the same chat support might have solved his problem right away, had he spoken to a different rep.
Support is always a huge crap shot.