What would be more interesting is a modern framework and standard around querying inventory information. Something that's min implementation requirement is simple enough for consumer products to implement, and scales up to enterprises. And of course supports handling legacy/current discovery methods as well.

Seems like the main issue would be there's only limited case where inventory systems are currently needed, and the existing systems aren't completely broken just yet. But you can imagine at some point, being able to track and manage all of the devices in your home will be a big issue, and there may be an incentive for companies that produce enterprise and consumer goods to not have to develop and maintain duplicate standards. At that point it seems like it would drive some more innovation here.

In the meantime, my preference is to query data in real time form its source (e.g. AWS, VMware), vs. syncing data to a CMDB like database. Unmanaged physical inventory of course still requires a CMDB like database.