I had a local phone and dsl before, but I wanted to cancel the phone service coz I just got a cellphone. So I called the phone company and they asked me what I'm gonna to use for the internet then. I told them I HAVE to change to their competiter. Of course they don't want to lose customer, so what they did is they changed my phone plan from unlimited call to "meter" call (8cent/min to call out, no charge for call in, but since I don't really need to use that phone to call out, so it doesn't really matter), that costs ~$5/month, and they gave me a discount for dsl from 29.99->19.99 per month.

So the take home message is: you can ask for a cheaper phone plan to get dsl.