I mean effectively you could. Do something like the following: Take a subscription product that costs $10/mo right now as an example. Let's say you want a lic

I mean effectively you could. Do something like the following: Take a subscription product that costs $10/mo right now as an example. Let's say you want a license that lasts your whole life. Estimate the time you have remaining in your life. Let's call it 50 years. Now you can use an interest calculator to see how much it would cost to effectively buy a license until the end of your life. Plug in $10/mo contribution, plus 4% annual interest to cover inflation and price increases, for an investment length of 50 years. So you can effectively buy an "eternal" license for $18,714.61