In my opinion, when an investor uses alphabet classifications, B class should be areas that are above median value, median income, primarily owner occupant and in financially stable areas.  38127 as an area is primarily below median value, income and primarily rental properties and definitely an area challenged for economic development.With that being said, houses in this area are not valued at $170,000 to begin with so expecting $170,000 in appreciation is not practical. 

You are arguing basic economic reality backed by quantitative data, as well as overwhelming anecdotal evidence.

Economic resilience, coupled with ongoing infrastructure development initiatives and urban revitalization projects, enhances the overall appeal of the city.

Very sound words from a pure business economics standpoint. 

The Greenville market is strong - high population and job growth - diverse economic base including manufacturing, logistics and transportation, medical and leisure & hospitality.

I recommend looking into areas near economic bases - close to Nationwide Children’s Hospital, Ohio State Campus, New Albany, etc.

Even in a mediocre market, if you have a great agent and a great PM, you will outperform a great market with a mediocre PM and agent.That's also why I think it makes no sense to invest in 17 different markets: you don't know much about any of them, you have to build a network of people in every market, the law is different in every State and it's physically/economically impossible to visit any. (1-4 units anyway, large commercial is different). 

The appealing aspect here is the ongoing population growth and other economic factors.

There is also an economic perspective.

Also speak with the economic dept, Chamber, and any business incubators in the area.