If you don't, you hit the total loss end of the spectrum.  

So many immigrants here and many of them are more educated and much more driven than the average American.Still there are people that move away due to high housing prices, especially those on the lower end of the income spectrum. 

It seems like the broad aspect is you enjoying Real Estate & having unlimited potential of success.

A number of factors must be considered – most fall under two broad categories: supply changes and demographic shifts. 

A deal, in broad terms, is a property secured by a contract, at a price point that is sharply under market value, and accounts for a REALISTIC rehabilitation to bring to top market standards. 

I think Phil hit the nail right on the head - there are just too many niche areas in Pittsburgh to categorize neighborhoods into broad categories.

This is going to be a very broad generalization, and will not be true for everyone. 

From a broad perspective, it looks good, but it's hard to say without more info.

It looks like you are asking a very broad question, like "How do I invest in real estate?" 

I think this can be useful for broad market analysis (although there are many other factors to consider and other data sources).