The New York Times is investing heavily in beefing up its reporting of the entertainment business. That’s causing the LA Times to guard its turf. “Beneath the vaingloriousness of any caged match between media rivals lies the reality of their motives for fighting in the first place. And so the question has to be asked: Isn’t pouring all this money and militia into something as ultimately silly as show-biz coverage demeaning to both papers when there’s real news not being covered?”