While it's easy to say, "let's add a region/state/city," and, technically, not to difficult to program, it IS extremely difficult and time-consuming to take care of all tasks involved in the administration of a site like this - reading and acknowleding hundreds of reviews daily, membership, updates, software upgrades, SECURITY, and the infinite minutiea that the rest of us (thankfully) do not have to think about.
To the best of my knowledge, the mods that deal with this are all volunteers, so if you want to add a section, why not contact the mods see what's involved, and volunteer your time, as well? If I had the time and resources, I would, but, unfortunately, I do not.
By the way, I'm NOT a moderator, but I DID sleep at a Holiday Inn Express last night (review to follow) !!!