All well and good if you live in a metropolis, unlike the hamlet of Pewsey where ISDN is best available.
I was speaking to a Finnish guy who lives 90km east of a town called Vaasa - to save you looking it up it's about 1/2 way up the west coast of Finland - and has 2Mb downstream ADSL in his town of considerably less than Vassa's 50,000 population.