If the cost is the same, sure. But all they need is a market clear. They could run it on a small station in NJ and get the same result. This is not being done for local ratings.
Sure, all they need is 1480 or 610 for the market clear, but with 102.5's signal covering a chunk of Philly and most of Camden, putting the BIN on there too might not be that bad of an idea. How many people are listening to the Gambler on 102.5 (or... the Gambler at all?)