There are lot of shades of gray between the product that sells and the product that is actually used and recommended. I see this often with enterprise software. Although a company buys a software product, it does not necessarily mean that the product is being used. It happens often in enterprise software because buyers are often not the users. If you are buying for someone else to use the product, it is more prone to buy something that may not be useful to the end users.
But this also exists in consumer space. And it happens all the time.
I am not talking about something that you grew out of. I'm talking about something that you thought you'd use, but never found it as useful for one reason or another and decided that it's just easier not to use it than trying to make it work.
There are many such examples. Let me share one. It's voice command control on my car. I don't know of anyone who uses voice command to enter address, although technology has been available for several years. Take a look at the steps involved in entering address using voice command.