There's one just off Dundas between Dixie and 427. Being a permanent residence you can't easily turf them out. I would guess 150 or so trailers paying rent. I have no idea of what rent is there but a friend in a dump of a park in Nova Scotia pays $250 a month. If it's double that here, that's decent income per month. Then there's the growth of the property value when the owners get tired of it (5-10 acres). Just plow roads and do garbage pick up if the property is paid for.Isn't there one along Mississauga Rd near Belfountain? Pretty sure I saw it when riding in that area.
I was in there decades ago and it seemed well kept. Owner occupied only, no rentals.
I recall seeing one for sale a while back and well into the six figures but most of that was for the right to live there. The trailers aren't worth a lot if they had to be moved. If a new owner decided to redevelop the land and could get away with it, the trailer owners are in housing trouble unless they like Elliot Lake.