[Starless]

OK, I've been selling on Ebay for a few years now and I'm confused as to how sellers can offer free shipping on items that they sell for less than the cost of shipping. Not to mention what their net profit will be after Ebay fees.
Here's just one example to give you an idea of what I'm talking about: A seller offered and sold a Time/Life Fix It Yourself book for $4.36 with free media mail shipping. Media mail starts at $4.63, so right away they're in the minus for .27 cents. Now figure in the ebay fee of @ 14%, that's .61 cents. So they sold and shipped the item for a loss of .88 cents.
What am I missing?