Depending on the number of jobs and number of new development going on in the area it may just be simple supply and demand.

Growing up on one of the Ranch's in Northern Ca my dad bought to develop 2k acres.

You’ve developed a moderately fast wealth accumulation strategy that’s relatively low risk, enabling you to ride out down cycles, negative cash flows, unexpected necessary expenditures, etc.  

Red Rock Development spent $50 million building the 600,000sqft warehouse (that Amazon now occupies) without a tenant lined up based off the projected growth. 

McKinney and Princeton have been growing a lot and it is a good place to invest, but it is always related to what you are looking to achieve in a rental investment, appreciation or cash flow.At this time that area does not offer a big cash flow and due to the amount of development going on there, rental demand has declined a bit.In any case you have to make an analysis case by case.

Glad you reposted this questions as many people have said in the past- Follow the train stations- Green and Pink lines are still good for developement.

Buying turnkey rentals, you are generally paying more and allowing the provider to capture the profit from developing the property.

It explains the team that you should develop to have a strong foundation under you while investing remotely.https://www.biggerpockets.com/blog/core-four-real-estate-team

The main reason is to incentivize affordable housing development.

Real estate wealth is built through long term price appreciation, property becomes (usually) more valuable over time, especially if purchased in areas that have either gone through development or redevelopment.