Ask HN: What’s with all the paid advertising for Apple Vision Pro?

Seeing ads for Apple Vision Pro following me around the interwebs. Leads to a very long and complicated sign up page with tracking.

https://www.apple.com/apple-vision-pro/

Interestingly, can’t seem to find the price anywhere on that page…

Why would Apple need to pay to promote something? Simple as better understanding demand to determine supply? Wouldn’t price be important to include? Why not take pre-orders? So many questions!