I've just initiated a switch from Bigpipe to Orcon for my home broadband. I've been with Bigpipe for a long time and have never had a problem with the service, but I decided to check the pricing of other options. Orcon were offering $50 per month for 6 months then $100 per month for unlimited gigabit fibre, which I was paying $129 per month for from Bigpipe. I gave Bigpipe the opportunity to pricematch (or similar) but all they could offer was a $10 per month discount for 12 months. In fact, they really didn't seem all that bothered about losing me, they even sent me the details for how to cancel my account without me asking!
All good things come to an end I guess.
Martin