Rugby Regions?

Are the top Welsh rugby teams regions or cities, The Scarlets notwithstanding? This evening's match between The Blues & The Ospreys is being touted on S4C as a derby match between two cities. If this is the general perception then let's stop pretending. With a drop in attendances, lack of revenue, and a haemorrhage of players it's time to recapitulate, admit that the experiment hasn't worked out, and let the spectators support an entity they can identify with. Ironically the only area that can truly be called a region, the valleys, isn't even represented; there's talk now of bringing them into the equation, it just might help the concept at least to have one real region, yet there again........