Multiple Websites for Multi-Location Businesses?

Recently, I have been looking into different providers for a new website for our auto dealership. I am familiar with the process and strategies having worked with many businesses going through a website design and development project. But something was recommended to us during my research that really stood out to me.

It was recommended to us, by multiple automotive specific website providers, that we have a unique website for each of our dealership locations. We have locations in Sioux Falls, SD, Rapid City, SD, and Tampa, FL. Initially, this recommendation made sense.