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>Not really, because I saw too many software companies go out of business because not enough people wound up upgrading to the next major version -- the ownership model of software can be awfully feast-or-famine for developers' income, it's a very tough/risky business model.

If the Monthly Recurring Revenue is a make or break for companies that provide the software, then inversely the Monthly Recurring Expense would also be a make or break factor for customers or business using the service. Buy once may reduce the overall cost for customers and allow them to invest in upgrades only when their revenue is better.

There has to be balance and empathy for the customer too..