In my opinion eBay free listing days are a scam. They tell you that you can put anything on auction for free but in very small print where nobody can see it, they say that they will charge you about 5% of your final value selling price. So, I sold 10 items for a total of £700, thinking I paid nothing to sell them but on my most recent invoice eBay had charged me £33!!! And then when I complained eBay were their usual unhelpfull selves and so I had to pay £33 and thats it.
So beware when eBay make you a tempting offer... they can be con artists!