I think the CBS sports radio format, might be a good thing for 610 WIP. It will offer even another choice of sports/talk radio programming for this great sports region. It would give 94.1 those 610 listeners (who can get 94.1 and want the local sports talk that WIP is known for) and might bring in new listeners to 610 thus growing their audience share. Of course it could flop and hurt 610's audience share.
However, CBS, which owns WIP, will make money from selling national spots and having the Philly market carrying the CBS feed helps that bottom line as national ad dollars is based on how many markets carry the program, and a major market like Philly is worth a lot of money. So with the new CBS programming coming in September, that might actually make 610 more profitable than it is now as a simulcast to 94.1's programming. That of course is the bottom line.
As an added bonus 610 WIP covers Wilmington, Atlantic City, Trenton, and Allentown. So they could claim those four markets in addition to Philly when selling those national spots.