The bundle is $249. If you don't think 8k people would pay that to have lifetime access to components that look great and allow you to build a great looking website in hours, you don't really understand the dev market.

As a developer, Tailwind UI is a god send, I've been waiting for years for a great looking CSS framework with pre-made components

(Also, they had a pretty big audience already after selling Refactoring UI which is a really useful book for developers that can't design, like me)