In reply to Ben Fox.

Ha, ha!

I was giving examples of where "unlimited anything" is sold. Those markets happen to be saturated, so some sort of recurrent fee is, of course, required. In a market where there is still a huge untapped pool of potential customers, just focusing on selling more units is, in some circumstances, a perfectly viable business strategy.

And selling more units is not a Ponzi scheme. A Ponzi requires new money to finance old. Selling more units doesn't require that at all. Enabling previous purchasers to upgrade to the latest version actually costs nothing, so there's nothing to finance there. The cost is in creating the new version, which is financed by new purchasers.

So it's nothing like a Ponzi, and your hyperbole isn't going to change that.