Some sellers want an absolutely trouble-free sale where both parties are perfectly clear abt the deal and no arguments can follow. That's face to face.
That's me.
When I buy (very few times) I go and look.
When I sell (very few times) I advertise and accept a lower price than could be had if I took the risk of shipping.
Not even a remotely reasonable person could ever be inconvenienced or annoyed by the application of those two policies.