A lot of providers do have 'fixed' portions of costs, so, it won't be quite 1/2 or 1/3rd. It may, at scale, be like 100% (one provider), 55%+55% (two) and 40%+

A lot of providers do have 'fixed' portions of costs, so, it won't be quite 1/2 or 1/3rd. It may, at scale, be like 100% (one provider), 55%+55% (two) and 40%+40%+40% (three). Still eminently affordable.