Manufactured Home Parks = good returns?

I read in Owners Own this week about a manufactured home park that has 72 homes occupied and charges approx $82 pw rent. That equals $5900 pw or $300k per year!

The residents buy their own manufactured homes so you would have to buy the land, get zoning,community buildings, managers residence, landscaping etc.

What does everyone think about this type of property investment if you started your own park from scratch?