I don't know why people go elsewhere, lured by deals that are never what they claim. BT has its faults but I am tired of hearing people moan because they have found a cheaper deal that has backfired. BT has invested billions on the equipment that others use to undercut them, so it is no surprise that BT will look after its own customers as a priority if there is a fault. In fact, in more than forty years as a BT phone subscriber I have never actually had a fault, and on their broadband very little has ever gone wrong. Each year they offer me a good deal for staying with them. It will take a lot to make me desert BT.