Comment by amiga386

Not even "Rent". Rentals are priced by the time you rent for. If you want to rent something for 30 years, you can, and you'll keep paying for 30 years.

This is a one-time cost and you just don't know when they're going to snatch it back from you. They won't tell you. They won't even give you a notice period. They don't know themselves. They only find out when the licensor they're sublicensing from demands "too much" for ongoing licensing and they just give up and pretend they didn't sell you that and take your money.

The button would have to be "Licence, subject to unilateral revocation at any time."