I guess we need your definition of "upscale", because I am at a loss to identify one as well. I see some blacks in communities that are upscale - but they certainly are the exception in those communities. Even they will tell you they are (some are friends of mine).
I would that you are right about that. If we are looking for the black Beverly Hills, it is not there. But there are some neighborhood that are majority black with household income in the top 25% on average.
I am at a loss to find an 'upscale black neighborhood' in Raleigh, Durham, or any other city in North Carolina. There are a good number professional blacks who live in our neighborhood which is a mix of Research Triangle Park professionals of every racial background. We have people from India, China, etc. who all moved into the RTP area. Most are engineers, scientists, etc. Let me say that some of my black neighbors are among the brightest people I have met. A couple of have PhDs. The typical image of 'ghetto' being applied to all blacks does not fit in my personal experience in our neighborhood. I find that 'upscale' blacks tend to live in integrated neighborhoods rather than segregating themselves.
Because, unlike you, I had a collegiate experience and got to see some places from beyond a hotel room.