Save it for the next property assuming you already have your reserve funds.Don't pay down the mortgage on a rental, opportunity value of equity will eat up your cash flow and a down turn in the market will make it vanish.

Having to remodel a bath, putting on a new roof, siding, AC unit, etc will eat up all your cash flow in a hurry! 

If you spend 6 extra months rehabbing the property a hard money loan can eat up most of the savings by doing it yourself.  

In speaking with others, FHA's MIP can really eat into cash flow which already difficult to achieve in LA. 

Minimum payments on the debt eat all that up and more.

"While you're waiting for the whale, I rather catch the little fish and be eating plenty

I need 1.5 hours to complete those disciplines and then can eat breakfast, put myself together, and (possibly) commute to the office/work site by 8:00am (or 3:00am in the case of the night shift Daren mentioned above).  

If you are interested in wholesaling let's eat.

You can not have true ppositive cash flow with dead equity eating up your profits.

That's not the case so they're either keeping their retirement fund in a risk(ier) stock market or eating into their principal that they thought would sustain them.