they stack way too easily; once you have reached some healthy temporal separation from the initial grief of inheritance, I strongly recommend formalising some strict policy and liquidating the unwanted weight. there are businesses happy to bid on pretty much anything printed, and some people don't have any inheritance and simply look to buy random filler without being too picky about their history or contents ... it might not be as hopping a trade as posting memes on SN, although there is definitely a market.