That's perfectly technically possible, which is not to say that there aren't technical issues and problems. What I'm less clear about are the economic structures that will allow us to cope with that. The business has always been about maximising use of the resource base. I wouldn't even want to control it, but I'd have to. And passing the budgetary responsibility to someone else is a cop-out.
Someone has to face the problem.
In my institution, most users aren't budget holders. Most lecturing staff aren't - and no students are. Sometimes we think of document delivery services as only of interest to researchers, and if you believe some people, these researchers also seem to have institutional credit cards with unlimited spending powers. Of course I'm worries about costs. We're talking about new technology here and new technology is always a good excuse for ramping the price up.