In a previous article I discussed Apple’s approach to cloning and how far they should go in shutting down that business. This led to the question “why can’t I just buy Mac OS X and install it on any hardware I want?”, which led to a pretty typical answer that the boxed OS X is sold as an upgrade, not a new (or full) license. This answer is sometimes challenged, and brings up the idea of what an “upgrade” is in the Mac world as opposed to Microsoft.
This is not an Apple vs. Microsoft argument. It simply attempts to outline the difference in each one’s approach to OS sales, and why each uses the sales model it does. Rather than claim one is “right”, I believe each is right for the business model it supports.