And I sometimes felt like a gambler in Las Vegas, doubling down hoping to recoup my losses and come out ahead. 

Frankly, I buy on today's numbers as my crystal ball is always hazy and I'm not much of a gambler.  

I did, for many years (yes, there's a very fine line between investor and degenerate gambler -- and I've walked it :-)...  

I'm not a gambler so I would rather focus on cash flow. 

Particularly the investor, sorry, speculative gambler crowd.Historically low interest rates, historically high house prices, 3-10 year loan terms with 25 year amortization periods, not something I would touch with a 10 foot pole.

Every day, a typical wealthy gambler (many many of these gamblers in the world come to Las Vegas) would bring $3 million to $5 million bank roll for gambling in casino. 

Like any lever, it can exert force in two directions, upending the investor/gambler’s best-laid schemes.

Set high standards for your business, run it like a professional business, follow the low, and you'll mitigate most of the unnecessary issues landlords/risk taking gamblers on this site encounter.  

There will always be investors and gamblers.  

Only gamblers and the uninitiated do.