Sorry, I didn't really define my question well. Basically by users I mean people that may edit the website. You have really good arguments. I don't really fin

Sorry, I didn't really define my question well. Basically by users I mean people that may edit the website. You have really good arguments. I don't really find this being fit for big companies, but I suppose one way of pricing would be by how much traffic your site gets which sort of directly imposes how much money your business is making. In my opinion this is by far the best way to go.