If you're serious about this, then, well, there are hurdles. Assuming you can get through the permitting process -- this varies, but keep in mind that a lot of places think that RV campgrounds are "mobile home parks" (aka low-income housing) and are therefore unwanted in pretty areas -- then you start spending lots of bucks, more than you might imagine:
1. Land purchase. Ugh. This runs the gamut, but if you're talking agreed-upon pretty country, count on a LOT of money. Think a few hundred thousand bucks for raw land.
2. Sewers are not cheap. For example, recently we connected the existing sewer system to the village system. This involved laying lines along the existing roads and connecting at one end to the city and at several points into the existing system. The job is not completed quite yet, but the cost? Right around $70K, estimated. That figure would be at least double that if we'd decided to redo the system from scratch, as if it were new construction.
3. The national average to supply 50 amp power to sites is now around $6K per site. Subtract a bit for 30 amp, but not much less.
4. A small load of gravel (~2.5 yards) runs around $55, all costs factored in, if you do the loading and spreading yourself with park-owned equipment, which would also need to be purchased. For new construction, you're talking many dozens of loads of gravel of different grades. (By comparison, a single large belly-dumper of gravel runs around a thousand if you do the spreading yourself with park-owned equipment. You'd need a pretty good number of these loads.)
5. Wells run anywhere from $5K to $20K, depending on depth, rock, and so forth. This is just for the well. Pumps, pressure tanks, and all lines to sites are extra. Digging lines alone will run you anywhere from $65 to $100 per hour of labor, depending on location.
6. At this point, you have sites, but no buildings of any kind. But you're up and running.
7. Once you're up and running with sites, then factor in a bunch of fixed monthly costs that will need to be covered year-round, whether its full of Airstreams or empty. Your local village officials and related providers of amenities will have lots ot say about this. Continuing monthly costs put a real strain on the system financially.
Of course, keep in mind that Canada and the US combined are way to big to consider just one of these things. You'd practically need several.
I know that brute costs are probably going to throw a bit of a bucket of sand on the idea, but it is worthwhile to think it through.