It would be nearly impossible to maintain a pricing structure like this. The standard in the software industry is a price that comes with 1 year of free update (bugs, features, etc). At the end of that year, you have a choice, pay for another year of updates or don't. Regardless, you still have a working piece of software. This scenario is technically a subscription, whether you pay once a year or every month. When you decide not to pay anymore, you no longer get updates. But the software as it sits at that point in time is yours to keep using as long as you choose. You get what you paid for, no more, no less. There are very few companies that have a "pay or loose access" type of subscription model. ProTools is one of them. Adobe is another. As mentioned in an earlier post, I think the term 'subscription' is being highly misinterpreted.