Haven't had a land line in Utah for about 15 years. Haven't bothered with a phone book of any kind for about 5. At my place in the Dakotas it is different, most businesses don't have much of an Internet presence, and cell coverage at the farm house is both marginal and intermittent, so I have and use both.
I teach social research methods and we talk about the difficulty for researchers now that people are disconnecting landlines. How to get a balanced phone survey when large sections (it used to be just the 'young' and 'poor')have no land line?
I have a friend who used to be a printer at a large pro photo outfit and he'd always bring home prints of weirdos, glamour shoots, etc. He had a wall full of them.