I think there are two kinds of value of domain names, one is the value of the domain name itself, such as the original good, short and easy to remember, with a special meaning of the domain name, this kind of domain name can be sold at a high price, but after all, such a domain name is limited.
The other is the value of the domain name given by the brand, the domain name itself is not special, but because of the brand let everyone know. This is where developing your own website gives value to the domain name.