It's a peppermint and clove oil spray.

Just another snake oil salesman doing his thing.

Add a very diversified economy here with banking, insurance, oil and gas, education, three medical schools, 3 law schools, life sciences, DFW airport, and so much more, it looks like the growth just goes on and on.As far as appreciation goes, that's always tough to predict. 

They invest massively in infrastructure and in marketing. 40 years ago, Cancun was a coconut plantation was hardly anything else.

I might use an oil or shellac based primer on that spot before repainting to be more certain of good adhesion. 

I am confident that “Drill Baby Drill” (aka reducing the price of oil, aka reducing everything that is transported) will directly impact the cost of goods thus increasing tenants and buyers purchasing power.

Beside RE, am also interested in gas/oil.

Rail roads he has got that covered.  ...and restaurants (Dairy Queen), and the Beverage Industry (Coke), and Oil & Gas (Suncor Energy), etc., etc., etc.The other side of the coin is he also missed the .com bubble burst in the late 80's.I tend to feel the same way...if you're going to invest, then invest in something you know.  

Irony of your analogy is that oil and gas production needs to drill many holes to succeed. 

Sub $50k houses work well as the snake oil not only for the "distortion by contrast" effect you outlined but also from a basic practical sense in that it's hard to find a lender on that asset class (which would require inspection/appraisal/professional eyeballs on the deal). $50k is also conveniently too big for small claims court but not big enough to interest many lawyers.