Time to Stop Investing.?

[Lin Vanderhook]

I am 73 this year.  I was a real estate agent for several years. When I got my commission, I bought a new pair of shoes, and put the rest in the bank. My back up job was RN.  When I retired in 2000, I moved to the poor part of Santa Barbara County, namely Santa Maria. I dropped my R E Lic.  

   I bought a new built home for less than half price, of Santa Barbara prices.  That was in 2003. Then the bubble burst,...in 2009 I purchased the foreclosure next door for less than half price, of the original sale price . I have consistently  purchased a single family , in the same area , I now own a total of 6 homes.  I have come to the point where I can hire property management , with a good cash flow for my retirement.   I am tempted to purchase a new build, at the same price as older homes are selling. I will require a loan this time< the question is   SHOULD I STOP??