All fair comments from Final (as always!). Ultimately Prime, even in it's early state, is a much more multi-functional device and not really comparable to the Q.
The launch version of the device and OS isn't even scratching the surface for the possible use cases that are going to transpire in the years the follow.
Some will leave it at home and just use it as an epic cold storage device with a superior UI. Others will do as Final suggested and incorporate it into their daily carry for 2FA.
Others will use a hybrid approach of the two, maybe as a 'warm wallet's key or a part of a multisig quorum for friends/family.
Possibilities are endless.