While this is true, I think eBay is very labor-intensive both on the side of listing goods and having to continuously bid on them, and I'm unsure of the size of

While this is true, I think eBay is very labor-intensive both on the side of listing goods and having to continuously bid on them, and I'm unsure of the size of people who buy electronics in need of repair and then resell; it would involve at least two shipping periods for a relatively small gain, not to mention the time investment and being unsure if the item is repairable, having not seen it in person.