I wonder if domain names are not overvalued... I know your domain name is part of a brand but isn't it better to pick an original name than a common name to hav

I wonder if domain names are not overvalued... I know your domain name is part of a brand but isn't it better to pick an original name than a common name to have people remember you? Especially now that the URL bar is also a search bar in most browsers. How many books a year are sold books.com? How many requests does search.com serves daily?