Columbus is an incredible market (real estate and quality of life)...everyone loves where they live, but it's really exciting to see the growth and expansion of the city here...I wouldn't hesitate to say (besides the weather in the winter ;) Columbus is one of the top 5 cities in the country...my prediction was the population would double 2-yrs ago and everyone laughed...but the city is on track to make it happen.Is there a particular area of the city you'll be focused on?

Charles County (fastest growing area in the region), the expansion of Westport Plaza has reinvigortated the nightlife in the area and the new World Wide Technologies headquarters is going to be great for the region. 

Riehle[1] https://apexaz.com/old-pueblo-finally-waking-up/[2] https://tucson.com/business/raytheon-on-hiring-spree-as-tucson-expansion-takes-shape/article_3fd571fd-8d2c-527c-b22c-ccfdbe1e9bee.html[3] https://tucson.com/business/tucson/vector-space-to-open-tucson-manufacturing-plant-bring-jobs/article_3d1bde72-b236-5e38-9c9e-24036233d55e.html[4] http://tiboaz.biz/2018/03/17/tucson-to-receive-a-large-amazon-distribution-center/

My wife and I currently own and operate a small cabin rental business in Southern Colorado on the Rio Grande River.  We currently have 3 cabins and would like to expand.  We stay very busy and turn away more business ...

It's not like the Raiders are an expansion team with no built in following.  

Expansive clay soil and if the structure was not properly designed and constructed, the result can be complete failure of the structure.

They can get expansive and overly complicated quickly

The analogous 'market' financial model I fall back on is this: the P/E expansion of a growth company, when the company introduces something 'New' that triggers renewed investment interest.

Plus the Real Estate Investing world is so expansive, it really depends on what area you're looking to dive into.

If one is already past the wealth expansion stage and the marginal utility of the next dollar is not worth the effort it takes to keep ROE up.. more power to them.