RadioPhillyFan said:
KYW-AM bills a million a month - KYW-FM could overtake WBEB, and bill maybe two million a month.
Two million a month is extremely unrealistic. Maybe a million and a quarter; most people who are going to advertise on KYW already do and you won't attract many more just because it's on FM.
Now factor in the THREE stations (you keep ignoring the ones to the West) you'd need to buy and then shut down, meaning that the money you spent on them would be flushed. PLUS you wouldn't be deleting the allocations so it wouldn't have much of a net effect on protection patterns once people snapped them up.
Please give up on the fantasy of a new allocation in Philadelphia; it is literally impossible.