Landline is nickel and diming itself to death

Why does AT&T still charge for Caller ID? Do any cell phone companies charge for Caller ID? The landline companies could bundle in a bunch of features and it wouldn't cost them very much money. It would, however, gain them some desperately needed good will. They also need to figure out there's a lot of people who don't want an $30 bill for a connection they don't use much. They really need to figure out that $10 from a customer is better than $0. Oh well, they'll figure out eventually. I mean, if the maintenance guys at work have no problem dropping their land line for a cell phone or voip over cable, surely AT&T will figure it out?