I have a theory that this behavior pattern related to pipe smoking was more prevalent pre-Internet, at a time when we had less awareness and opportunity to acquire different varieties of pipes and tobacco. It made more sense to grab a single pipe and smoke the stuffing out of it when it was pretty much like every other pipe within one's grasp.Yep, I have had many family members who smoked one pipe all day long and once it was caked up, they’d toss it and get a new one. Cake was sort of a badge of honor on how much you smoked, and you looked forward to finishing with that pipe, so you could buy a new one. It was just the rural way to smoke a pipe.
Poor people would scrape the pipe out, because you didn’t have the means to buy a new one.
For those who lived in small town America pre-Internet, choices were limited to whatever was carried at the local drug store. That would typically include Dr Grabow, Medico and Yello-Bole pipes, and Borkum Riff, Half and Half, Prince Albert, etc., tobacco. Our awareness of alternatives came from magazine adverts. Our purchasing alternatives aside from the drug store were mail order catalogs like Wally Frank's.
For those who lived in cities with an abundance of pipe retailers, the experience and awareness would have been quite different.