I am not looking to buy them right this moment, but I can't really seem to find any recent sales of them. ( My search skills are probably their usual horrible style. )

So I am interested in knowing if anyone knows the current approximate value of them, or if their price is determined on a sale by sale basis...?

As usual, many thanks for any and all help.

I think Sergio was offering 1k (or maybe 1.5k) per ensconsing field earlier this year. That's the only time I've seen them being bought n' sold.

They are largely unpriced due to their scarcity.

I figured as much.

Thank you both for confirming my suspicion.