You'll own it (will be featured on the home page) until somebody else buys it.
All previous owners will remain visible in the leaderboard at the bottom of the homepage, sorted by the number of times they have owned the page.
You are allowed to add two outgoing links (dofollow) under your account and include all your social profiles.
These links will be visible on the homepage as well as on your dedicated profile page.
If you purchase the homepage multiple times, each purchase will count, and you will be pushed up on the leaderboard that is also displayed on the homepage.