I think Cumulus wants to keep its talk shows on the air in New York, but if it can pocket some cash and air them on a lesser signal, they might be OK with that.
The problem with trying to do conservative political talk on lesser signals in both NYC and Philly is that in geographical terms the potential audience looks like a donut.
In both NYC and Philly, the urban core of the market is very blue, and the fringe counties are politically red. The lower power AM signals were designed in the era when the bulk of the population lived in the urban core, and they don't do a good job of reaching those suburban red counties.
On the other hand, some suburban stations do, but then you can't really tell advertisers that you're on a Philly or NYC major market station.
Agreed that if the talk format on PHT hemorrhages money, that CBS will still find something else to put on the signal and will keep it in the family long term.
Also, as long as Cumulus is in the national talk syndication business it will keep WABC. If it does buy another FM in NYC it will do another format. In the whole hundreds of stations scheme of things, picking up a relative few bucks and selling off a rare station like WABC while dooming your national talk show offerings to a lesser signal doesn't make sense, especially when your chief rival in national talk syndication just bought WOR to compete with you.
When it comes to the business importance of baseball coverage, it isn't worth buying a major market AM just to do that. It should be remembered that in NYC, CBS loses millions a year on the Yankees radio broadcasts. In a market of 16-million, the average Yankees game cume was about 365,000 during the 2011 season. I don't know what the numbers are in Philly, but wouldn't be surprised if baseball isn't a loss leader for CBS Sports talk here too.