Andrew Boon
One-off payments will remain for as long as there's demand for them.

As for that $30 mod... In 10 years - did you have any associated expenses apart from the initial $30? Or was it always upgraded in time, supported and services by vendor in time without you having to spend time on it? Very few do, because it doesn't work out for vendors - they can't finance support overhead from new sale forever. It's not sustainable.
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