Rural Mobile Homes (Not in Mobile Home Park)

I live in a pretty rural area, large acreage and lots of mobile homes. Being there are so many of them, I'm running some numbers on those on the market and they look they should cash flow really well, around $400-$500 per property. Is anyone out there buying and renting mobile homes in rural areas? I seem to recall discussion in the past of someone buying and doing a rent to own program with mobile homes on rural plots of land. 

I realize I am sacrificing appreciation for cash flow, but it would seem to balance out over time. Especially if I were doing a rent to own strategy which should limit my exposure to the increased cost of maintenance as the homes age. I'd appreciate any advice or experience anyone is willing to offer. 

Tom