Comrades....heres the weird thing about New York.
It may sound strange, but there is truth in it....New York almost more than any other market in America falls in love with its radio stations. Its NOT just about music (where in other markets it is).
You see strange (out of demo) older audience for both Z-100 and WKTU (diehards that never grew out of it). WPLJ holds that 80's pop "Bon Jovi" audience (no matter how large or small it may be). A similar trend holds true for both WRKS & WBLS the cache of their brands is more important to listeners than the songs. The CBS-FM audience is still scattered at the moment and will come to rest over a variety of stations. The truth is many of them probably sampled the all-news stations, Lite, WQCD, WFAN and other stations as well and have just remained there.
So the real challenge for JACK will be to find that audience. Its not as easy as it might have been in other markets (like Los Angeles...where there was no real mainstream 80's station [STAR was very, very new wave heavy, KBIG was disco heavy] so there was a hole for the Def Leppard, Prince, Mellencamp, Bon Jovi, Springsteen variety KCBS brought) JACK has real competition for those listeners other JACK FM's could cobble together and except in certain suburban markets where maybe a local station that did that has moved away...it will be a tough road. 'PLJ doesnt have as wide a net to cast as it once did...but it serves the listener that they have chosen to focus on quite well....and the billing supports that.