They might not list a lot at any one time though.
My uncle has collected coins, stamps, die-cast model cars, and heaven knows what, since he was a boy.
Thousands of items.
Because of being restricted during Covid, he made one listing every morning - stopping at 300.
Just relists those that don't sell (they all do eventually) and replaces those, one at a time, that do sell.
Doesn't take a lot to build up a base of items and then keep it ticking along.
Just have to work it to suit you rather than ebay.
