Thanks for the article, I like your take on how you at least learned something from it despite not making a significant sum. Experiences can prove invaluable.
I’m kind of a numberphile so I really like the detailed breakdown of the fees. The bulk of it seems to come from the FBA fee. I don’t know what shipping prices are like in the US but you could potentially save some money there — although you would have to put in the time and effort instead.
This was definitely useful for me as I considered clean sweeping my bookshelves as well — guess that will have to wait until something more profitable turns up.