It is early days so no-one will miss £1 a pi.
But I will get greedy when it hits the BBC and goes viral, and ask for a fiver!
But the small print. You do not actually own the land when you buy a novelty plot on the Moon, so the same is for Pi. The only deeds here is the right to the best advertisement. It's simple. You are letting the World see your website.
To buy just click on Buy Now button. Decide how many numbers you want and then what colour of font or highlighted box.
And here is the best bit. If you want to plug your own website, that is good. But you don't need to own a website. Just promote one that you like. Maybe a certain nice eatery you enjoy or some seaside gift shop you discovered on holiday. Any trade you like, but keep it clean. No Grannies in Rubber dot com here.
Allow a short window of time for publication. And you will be notified by email.
And don't forget to share!