In many cases, the freedom to tinker is just a hedge against disaster. That's why it's so much easier to sell open source software to enterprise companies: they're big enough that spending money as a hedge against disaster is a good thing. Companies pay for Red Hat subscriptions for a whole host of reasons, but one of them is because they can see the advantage to themselves that Red Hat remain a viable business. As our CFO put it a while ago, Red Hat's billion dollars a year in revenue means that our customers have on the order of an extra 9 billion dollars a year to spend on other things (or to return to investors as dividends).