I still can't see a problem here. A business with a single customer exists in an almost complete vacuum and doesn't influence the market. What's more it's very risky as its revenues aren't diversified. It's completely dependent on its only customer.
that's right. consumers can have a monopoly over a business too. in fact, I seem to recall there are a whole bunch of companies struggling to figure out how to please the customers of a single niche and that live or die depending on how well they do that.
