A hyphenated domain is never a priority but people may go for this if they don't wish to register a very long domain name and want to get their domain name in specific tld only. Ironically the hyphenated domain version is easier to read as usually it has compound words while without hyphen domain name is easy to type, both have some advantage. A hyphenated domain name can do much better which have good quality content compare to rubbish content on a short & without hyphen domain name.
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