Quite so, Dave. I don't think I have at any point said that John Deacons is personally flooding the market with his own weights.
Nor do I think I am being snobbish with my comments: I am talking about the basic economics of the market place. If only half the Deacons weights on eBay sell, that is still around 2000 weights per year through that channel alone. If the dealers placing the orders find that sales are slowing down (because the market is getting saturated), then guess what - they will first try to drive the makers into selling them the items more and more cheaply, and when that can go no further, they will stop placing orders. And then what pays the bills chez Deacons? Provided the weights keep selling well, no problem.....but 'provided'.....
It is instructive to look at what happened to Strathearn, Perthshire, Caithness, Selkirk Glass, and to an extent to Whitefriars: they were producing lots of paperweights (often of excellent quality) that, after a time, the dealers did not want at the factory prices - so there was unsold stock, insufficient cash flow - and closure.