His profit margin has to be closer to 100% to make it worth his while...
Remember to count the ebay/paypal fees...at approx 10%-14% on buy it nows..sales of $5700 have ebay/paypal fees of $600-$800. A seller has to make a 30-40% return just to pocket a 20% profit. If you buy something for $75 and sell it for $100, it's not 33% profit... ebay/ paypal gets $11.75 out of your $100 sale..so it's buy for $75 sell for $100...profit = $13.25.
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