Not buying something can a form of user feedback, when they are choosing to vote with their wallet. I'm sure Apple had feedback asking for a cheeper server then the XServe or OS X server on a Mac Pro. So they released the Mini server, and in doing so, users voted with their wallet indicating they liked the Mini over the other choices. I've seen companies I've worked for in the past keep products alive well past financial feasibility for the business, either in an attempt to and remarket the product to try and pull more people in, or as a way to hopefully keep existing small customer base happy.