By way of disclosure, I tried in 2009/2010 and wasn't able to do it at any reasonable cost. Our compromise was living in a campground and getting cable service. That worked surprisingly well.
While most campgrounds have wifi, not all campground wifi is reliable enough to run a business. During the season it will bog down during peak demand, some of the smaller campgrounds have time outs and bandwidth limiters.
Out in the twigs even wireless wasn't reliable enough to make work.