>...in most areas, the telephone charged extra for touch tone service, even though it saved them a ton of money...

This reminds me of the stories I still occasionally hear of (typically) elderly people who have been renting their phones for *years* at the rate of $50 or $60 annually, when they could have purchased one at Target for $15. My parents still had a rented rotary phone in the late 80s! Sheesh Mom & Dad - catch up with the times! You're making me look like a square!