It always sucks to know you paid more than the seller did - but that just means Oxfam undervalued the book.
Having worked in one, charity shops tend to have a habit of either really undervaluing or overvaluing their donated goods - cause the people who actually set the prices mostly just guess based on looks and nothing more. Only if an item looks expensive will they do any research, and even then never really enough.
Granted, it’s not perfect, but I would assume since they have one it’s a publicly traded commodity (that is someone maintains a DB and sells it to such organizations).
It always sucks to know you paid more than the seller did - but that just means Oxfam undervalued the book.
Having worked in one, charity shops tend to have a habit of either really undervaluing or overvaluing their donated goods - cause the people who actually set the prices mostly just guess based on looks and nothing more. Only if an item looks expensive will they do any research, and even then never really enough.
Our local shop has a database of values.
Granted, it’s not perfect, but I would assume since they have one it’s a publicly traded commodity (that is someone maintains a DB and sells it to such organizations).
With the rise of ebay thrift resalers, I feel like all the charity/thrift stores around me price rather aggressively.