There used to be two stores that sold Japanese swords in my city years ago. The owner of one store was happy to earn a small amount on every piece and sold many many blades and fitting. The other person felt that a sword had a right price and that is what he tried to sell things at. He did not sell very much. His customers were happy but few in number compared to the other dealer. The first owner bought and sold in three countries, Canada, USA and Great Britain. He took items from one country to the next where they sold well/quickly. So he moved things around to where they were wanted and bought things that were wanted in the next country.
So, if you want to sell quickly, sell at a good price. If you are in no hurry, sell at a higher price and wait for the right customer.