I recently changed energy providers. Not an especially interesting revelation I admit: why would anyone else care whose logo is at the top of my electricity and gas bills? But I'd say that the reason for changing provider is interesting, because this is the first time I can recall consciously having made a purchase decision based on the quality of user-experience on a website.
It isn't that long ago that the user-experience of a company's website was no more than incidental to the overall customer experience, and an optional part of the customer's relationship with the business. These days it clearly makes sound financial sense for almost any business to encourage its customers to self-manage online, and now regular contact with the website has become an absolute requirement of that relationship.