For an auction set the "Starting Price" (a/k/a "Starting Bid", an old term which might still show up on some pages) at your true minimum you are willing and able to sell the item for (be sure to factor in eBay fees on the price plus s/h plus sales tax to a hypothetical buyer in a distant high-tax state). If you set it lower (including following an eBay recommendation or default) you are promising to sell it for that low (plus cover any shipping costs not covered by the s/h fee you set up, and of course the fees) unless you set a Reserve Price which you should not (eBay's fees for that are deliberately high to discourage using it and apply as soon as you list with no refunds no matter what happens after that, but even without that it is of questionable utility).
