There is a law in some branch of maths or physics - can't remember which, it's fifty years since I ploughed at Uni - that in any closed system, for every source there is an equal and opposite sink. This was certainly true of ballpoint pens at work - I was always taking them from the stationary cupboard but never actually used one completely up, OTOH there were others who never visited the said cupboard but whose desk drawers were full of them.

So there must be players who never actually buy picks, but their cases are full of them. All you have to do is find such a person and pair up with them.