The bandwidth is not the product; the last mile is
Enterprise buyers ask for a price per megabit and providers answer them, which is convenient for both and accurate for neither. The cost of serving a site is dominated by how the site is reached: whether existing fibre passes the building, how far the nearest point of presence is, whether a road has to be crossed, whether the terrain suits radio, and whether the building will permit the work at all.
Two sites requesting identical bandwidth in the same city can therefore cost entirely different amounts to deliver. Any quotation issued before that is known is an estimate, and the professional way to handle it is to say so on the document. A figure marked indicative and subject to feasibility is a normal commercial instrument. The same figure presented as a price, and then revised upward after the survey, reads to the customer as something considerably less flattering.
