For me it's an extra $10 a month or so, but I'm very lucky that my building includes basic cable and the digital converted in my rent. Right now, til the end of the year, Comcast LA is putting it in the regular digital package - then it'll go into the digital sports package so it'll cost an extra $5 a month. For me it's worth it, I definitely watch it enough to make it worth $15 a month (plus all the other stations I get). I've loved watching the Seniors the past couple days (watching Goran/Wilander right onw). And I love the original programming, like where they interview players in depth and follow them off court and go to charity events and stuff. and the international tourneys during the Masters events, there is nothing like waking up with my coffee and watching life tennis. So you just have to decide whether it's worth it. I figure if i'm gonna shell out a few hundred bucks for one weekend of Davis Cup next Spring, I can get TTC for the whole year for less than half of that and I get to enjoy it almost every day
As for Comcast picking it up, just keep complaining and begging for it. Tell them you want to put in a formal request for it and have everyone you know do the same. The fact that the person you got on the phone hadn't heard of it only meant that not enough people have been calling so that's why she hadn't heard of it - I mean she's not the one who makes any decisions so unless people call and complain and stuff, the regular people in the customer service won't have heard about it. So just keep at it, don't give up!