I must admit, it's enough of a drip feed that I've generally accepted the price rises.
I looked at Sky and BT recently, but honestly for anything like the same service I was paying maybe £50 - £80 a year less.
As I have 200MB (actual, not theoretical) Broadband and do all my work online and from home (although sadly it's no longer funded), I'm loathe to move away from them, but I probably should get onto them and threaten to leave as we've been customers of them since they were Cabletel!
M