But that could only ever be worthwhile in markets with very few competitors. But when there is only a low number of competitors, customers usually have better w

But that could only ever be worthwhile in markets with very few competitors. But when there is only a low number of competitors, customers usually have better ways to form an opinion than internet reviews. The only exceptions are cases where customers are faced with a wide range of vendors, but only tiny, well-delineated subsets are in actual competition. Restaurants serving travelers in a small town would be an example.