I can disagree with many on this thread..in 20 years, and 1500 transactions, I have had great results with eBay..It is the "blue book" for prices on anything..why pay more locally, or on Amazon, if you can get a better price on eBay?,,, Similarly, when I list something, I will list it somewhat less than what it has previously sold for...for something that I no longer need or want, and it doesn't sell on Craigslist or Marketplace, why take it to my grave?
I have 6? unpleasant experiences buying and selling in 20 years. 2 examples...a buyer didn't like what I sent; he returned not what I had sent, requesting refund--I called eBay, sent them pics of the items, they agreed and refunded the buyer from their funds. Similarly, I did not receive an item; seller could not provide shipping info; eBay paid me for my loss.
As far as 10% fees--peanuts compared to tripping over stuff you don't need.