I used to buy bulk lots off eBay years ago. $20 would buy you at least a dozen. I'd buy them to repair them and leave them aside. They SELL for over $20 each these days. so there IS demand for them. Especially 6 Digit. It costs anywhere between US$33 - $40 for a 6 digit glass. Not cheap !

So I'd think there would be heaps of interest.