Selling stuff is too much bother these days unless your getting rid of GW stuff on Ebay. In which case you should have a virtually 100% success rate (unless your the type to stick the old Warhammer Empire plastics on for about £50 for 10 guys).
I have a load of 20mm Elhiem, Redbox figures and Westfalian Hobbits I think I want to drop but it's just not worth it trying to flog them.
In a way it does speak to the state of the Hobby and Business/Economy in general. Everything (like postage) is too prohibitive and people are having to tighten their belts in times uncertain. A few years ago it was pretty much possible to sell anything without much issue (average wait time was about a week). When I was back in Uni first time around (7 years ago now) I was practically whizzing through stuff.
It makes me wonder what people who make this their career selling this stuff are going through.