I go to garage sales, thrift stores, library sales, online sourcing, and wholesale sourcing - but can't seem to find anything that is profitable.
I sometimes spend whole entire days scanning, and finding nothing. I have been to thrift stores, and most of the books are worth a penny and have really high sales ranks, with 570 different sellers competition. Only a few out of a hundred are worth a little more, and when I do find some books that are profitable, they usually only sell for 1 to 2 dollars profit.
All these retailers and sellers do is sell items exactly at a price where you can't make a profit .They are smart. They probably look up the price, and they know that people like Amazon sellers wanna make a profit, so they jack up the price to stop them from doing so.