Yep. The market for broadband is a big one. A few weeks ago the number of broadband users in Canada exceeded the number of dialup users. With the introduction of "lite" packages, more and more homes are connecting to the internet on a permanent basis. See, not everyone is interested in paying C$45 a month for a 3 Mbps connection here. But at $19.95, the cost of a dial-up account and a second phone line [essentially a 24/7 56k connection since local calls are free here], a 256k or 512k cable or DSL connection is now much more appealing to other segments of the market.
It is uncertain just how many people will turn to a broadband line. Perhaps 80%? 70%? But there is going to come a time when the market is saturated. Right now broadband provers (telephone and cable companies, and perhaps power companies soon) are more interested in expanding and getting new customers. New customers are better than a "turned" customer (stealing customers from your competitor). But once the saturation point is reached, funds will be redirected in improving quality of service and connection speeds / latency / quality. The goal will then be to "turn" customers away, and the race for providing the best service for the lowest price will intensify, because the only growth a company will see will come from stealing customers away. (right now it is more focused on getting new customers)