Lets say I have a site sightseeing.com and I want to have a wordpress site geared towards sight seeing in San Diego - and I created sandiego.sightseeing.com. And in that subdomain would be its own wordpress instance etc.
Is there any benefit or detriment from an SEO perspective in doing this? Is it worth it?
My end goal would be to roll out similar cities over time and keep it clean so that one city isnt combined with others etc. Does this make sense? Would you recommend something else?
As always thanks!