Highly popular in the seventies around the Toronto area.

Homes in these parks are typically required to be "mobile" so they can be removed from the community should the need arise.Contrary to popular belief there is a market for mobile/manufactured homes, and this market appreciates and depreciated like any other market. 

Most of the popular areas are street by street (hit and miss).

I don't think I ever would have bought my current house had I purchased based on popular BP cash flow analysis and I would have missed out on my tenants paying over $50k towards my mortgage, a much much lower housing expense than what I would have been paying, and a very significant amount of equity growth. 

Near Bandon Dunes or Cannon Beach for example, a full family sized home (done well) will be just as popular as a smaller foot print due to demographics and composition of tourists.

I have rentals in a smaller town, but the vacancy rate is 0 as it is a popular town to live in

The place i've been looking at so far is Naples and seems like condos and SFR are the most popular products in the area. 

the most popular is Michael Blanks.

Overall from our experience gentrification in this particular area is slow compared to other regions such as the Old North Sacramento Area which is popular for investors at this time.

You can get 20% CoC, but it's not going to be in the popular markets mentioned on BP.