I really enjoy the fact that it does not cost extra to use the reserve price format for auction listings. Other sites charge outrageous fees to host a reserve price, and that makes no sense when there's no listing fee for a regular listing. Also, I enjoy the versatility of being able to change the format of my listings without having to end the old listings and start new ones. And again, there's no extra cost to doing this. I can make an auction listing into a fixed price listing and vice versa. Try doing that on other sites and you'll quickly realize those sites don't exist to help you sell anything, they only exist to take your money and make your selling experience generally unpleasant.