Honestly, a lot of it is domainer hype.
A three letter domain is great for a company whose name is 3 words long, as it is a manageable and brandable acronym.
The more companies that could use an acronym, the more a domain with those letters is worth. That's why a 3 letter domain with a good set of letters can be worth a lot.
But domains like xqz.in are mostly bought and sold as collectables between domainers.
Honestly, a lot of it is domainer hype.
A three letter domain is great for a company whose name is 3 words long, as it is a manageable and brandable acronym.
The more companies that could use an acronym, the more a domain with those letters is worth. That's why a 3 letter domain with a good set of letters can be worth a lot.
But domains like xqz.in are mostly bought and sold as collectables between domainers.