I have always believed that the best deal is one in which both parties walk away happy. When I was flipping I always priced a bike so that I could sell it in a day or two, waiting for someone to give you the price that you see on eBay for a bike is, to me, crazy. I just didn't have the time.
My bike kitty is pretty large, I was flipping for nine years and I have only 10 personal bikes. I owe myself at least a couple of Pegorettis