EBay is still where you turn for random things that few people need. Baby toys can sell on Facebook, but parts for an obsolete computer are valuable to the right person and worthless to everyone else.
Amazon is the place for rare things few people need these days.
Selling things where you need the perfect partner are not things that sell well through an auction. An auction is 7 days where you hope to get many people interested in your unique product. An obsolete computer is better on a shelf with a price tag available all year until it sells.
Amazon is absolutely terrible for anything used or where minor variations matter (e.g. collectors items) as they will just combine all listings into one with a generic image. Useless for many things that eBay covers.
