On second read, you might be right so I amended my comment... In my defense, OP's comment is ambiguously worded. What you actually get is a permanent license to the oldest release available during your subscription. OP also says:
>... after paying for any particular version of a product for 12 months, you also get a perpetual license for that particular version and so on and so forth."
Also kind of unclear. And judging by the comments here, many many people misunderstand this. I think it's a general expectation that you'd get access to most up-to-date version of the product when your subscription ends. Not the version from the day your subscription started.
Think about it. If there's a bad bug or regression in the old "perpetual" version you aren't entitled to the subsequent bug fixes. Bug fixes which you've been "using" for the past year. It's kind of a hard thing to swallow.
>... after paying for any particular version of a product for 12 months, you also get a perpetual license for that particular version and so on and so forth."
Also kind of unclear. And judging by the comments here, many many people misunderstand this. I think it's a general expectation that you'd get access to most up-to-date version of the product when your subscription ends. Not the version from the day your subscription started.
Think about it. If there's a bad bug or regression in the old "perpetual" version you aren't entitled to the subsequent bug fixes. Bug fixes which you've been "using" for the past year. It's kind of a hard thing to swallow.