When I started with ADSL in 2002 the overall cost was £381.24 for a phone line plus a 512Kdown/256Kup ADSL service. Now in 2015, only 13 years later, I am fuming that it actually costs me £436.80 for a phone line plus a FTTC 40Mdown/20Mup service. That's an EXTRA £55.56 per year (approx. 15%) over the original cost more than 13 years ago.

Its amazing that technology changes and for an extra £0.16 or 16p per day, I now have a massive difference in speed. I am one of the lucky ones, but in reality the extra coms cost has been approx. 1p ish per year extra per day on the cost I decided to pay all those years ago. It is also interesting to note that the extra cost is in the telephone line component rather than the xDSL cost.
I think I would have paid the extra 15% then if FTTC was available in 2002.
IanD