I really like (and personally pay for) Jetbrains's model of "subscription with a perpetual fallback license": https://sales.jetbrains.com/hc/en-gb/articles/2072

I really like (and personally pay for) Jetbrains's model of "subscription with a perpetual fallback license": https://sales.jetbrains.com/hc/en-gb/articles/207240845-What-is-a-perpetual-fallback-license https://sales.jetbrains.com/hc/en-gb/articles/207240845-What... You pay as normal for a monthly or annual subscription to one or more of their products. It's fine if you just want to subscribe for a month or two. But if you purchase an annual sub, or just keep a monthly one active for 12 months, you get a forever license for that version of the product. Even if you cancel your subscription, you can keep using it for as long as you want. You just don't get further updates to new versions. You also get some long term sub discounts, like 40% off after the 2 year mark. Thank you, Jetbrains.