I’ll worry about the price bump when it happens. Agree on the new customers thing, when I went to cancel PlusNet they offered to drop the monthly bill by about fifteen pound, which seems crazy.
One thing I’ll note is that the Virgin Router seems much more powerful than the old PlusNet one. Previously I couldn’t get much of a wifi signal on the other side of the flat, but now am getting about 150mb down speed in the back bedroom. This means I can bin all my wifi range extenders and other gizmos which is a nice bonus.