This is a very different model from what appears to be the norm of adding lots of units quickly/rehab/cash out refi, etc. so any comments on why my strategy would be a bad long term strategy would of course be much appreciated.  

Apparently even 2 5/16 inch balls have light duty models. 

A third model (which falls under the second) is a tiered services like someone else mentioned in this post.

I'm very much in the learning stages but have decent financial modeling skills and a MBA which should help me get started.

I just look at every area I go to and evaluate if it works in my model.

I applaud your business model and it's success, keep doing what you do.

Turnkey is really a model that plays well where cash on cash return is good.

We bought for $1,000, out $8,000 into it and that year and model sells for $19,000.  

My main concern about this business model (even though I have a few!)

My role is to find aspiring designers and brands in Indonesia to be the suppliers for the UK-based online retail.