Where do you see that? There's no price for mac1.metal instances listed on https://aws.amazon.com/ec2/dedicated-hosts/pricing/

EDIT: It shows up now.

Ah, it presumably comes directly from @flardinois's reporting for TechCrunch. https://techcrunch.com/2020/11/30/aws-brings-the-mac-mini-to...

omg... if you use it sigificatly (ie: every day) you might as well buy a physical mac mini and keep it at home. it'll pay for itself in a month!

Could you point to the source of this information? It wasn't obvious to me.