Let's take this in a different direction. We all agree that a company has the right to protect thier software from illegal usage or even multiple usage by a legal user. Let's take it from the standpoint of piracy rather then consumerism. This leaves us with only the task of preventing illegal copies by a non-paying user. How would we actually prevent this? Computer scienctist have been trying to figure this one out for years with no solution. With all good intentions they have come up with thier current schemes, but have failed to actually solve the problem. SO how could we solve this in practise rather than theory? Even the best minds haven't figured it out yet. Until they do, legal users will always be the ones to suffer. Anyone that does come up with a way to do this will be a very rich man indeed.