Comment by john01dav
19 hours ago
The sustainability of this is dubious to me because you're taking a one time fee for service forever, and eventually someone (possibly a future owner) is going to want to get more money out of you over this. Also, there are recurring costs to host this that continue forever, even with no further income from you.
Maybe they're betting on new people always signing up and paying, but not using it much. Still a risky endeavor.
They heavily limit the number of lifetime subscriptions they sell to avoid it becoming a sustainability issue. That product isn't available right now, for example.