My college currently has no limits, but I expect that to change within the next few semesters. The main reason behind these moves is the way the budgets work. Professors are being increasingly asked to put all their information online. For example, to reduce the printing costs for departments, all professors were not allowed to print out the syllabi for their students (some actually paid for it to be done themselves). The result it that students have to go to the labs or library to print them out. The library has their own budget, and the increase in costs eats into their plans. The labs are also on their own seperate budgets. These budgets are (from what I remember) rather small as they only cover operating costs (employees, paper, etc).