Recently, I had a chance to talk with the CEO of Scrintal, a Danish startup, and I was really impressed by their growth strategy. They had a tiny team of 6 people, sold a lifetime plan to exactly 1,000 people at $239 each, and of course it sold out. Including people who were invited by these initial customers, they've now built a community of 3,800 people.
https://techcrunch.com/2023/11/27/evernote-pushes-users-to-upgrade-with-test-of-a-free-plan-limited-to-only-50-notes/