Area/Location depends on price range, investment type and growth.  

As far as location: Personally I'm investing in areas of high growth across several markets within the southeast for some diversity. 

I also owned 350 of these not that cheap I was in mine 35 to 40k with total rehab  bought in 2010 to 2012 when prices were crushed .. but that tenant demographic Is simply in my mind un manageable for  long term growth and success. one needs to move up ..

Regardless of the perceived demand for housing, the actual demand ebbs and flows with the population and its growth or contraction.So, here we have a three-pronged puzzle:- Housing demand stays more or less on track- Housing growth is temporarily suppressed - Lending for home loans is severely inhibited by all the post crash checks and balances meant to tame a beast which has just killed itself.According to the laws of supply and demand, what happens to prices when demand outstrips availability (supply)?

That will help you get into a growth mindset.  

Congratulations on the growth of your portfolio, I hope to eventually be able to do something similar, and I really appreciate you taking your time to give me your honest opinion!

@Peter Vuong I am not familiar with your area but I can tell you that I have been having similar conversations about the speed of the growth in the market.

This is such a great resource for assisting each other and to promote growth and learning (especially for the new folks like myself!)

Wow, from what I've seen, Colorado is poised for a lot more growth and nowhere near a bubble.

I'd personally like to help grow the community and get to where more deals are being constructed amongst those those of us interested in building wealth by building teams and partnerships (networks).There are a few REIAs in MeetUp you could check out.