> you can have multiple hardware keys that authenticate to the same services, so you can store one as a backup. The most common case where people are willing t

> you can have multiple hardware keys that authenticate to the same services, so you can store one as a backup. The most common case where people are willing to spend $50-100 for extra security is businesses securing their networks. If you lose your passkey just stroll on over to the help desk and show your id and they'll enroll a new one for you. If you're an individual using a passkey with free online service, like Github, just enroll a TOTP key first and print out the QR code. Then if you lose your passkey you can use the QR code to get access to your account.