Nothing uses cablecard except Tivo. Only stupid people buy Tivo and pay a monthly fee to record tv shows.
Cablecard will take off once they are standard on TVs and work two ways.
Or rich people who like the option to pay for something better than what the MSO is offering. I agree though, Series 3 TiVos are VERY pricey, especially if your cable company charges a CableCARD rental fee. -- AT&T U-Hearse Your funeral. Delivered.