but all we have to go by on petro items is how often they appear at auction or make themselves available for sale. -we don't have production numbers-so yes although its a finite number- how on earth are you able to tell what that number is?

We can only speculate at how many of these things were originally made and how many are still in existence.


when we seem a bunch of 'em for sale over the course of a year we can speculate that there's more of 'em out there than we realized there were the previous year.

and yes, you're correct- the only number that changes is willing buyers-that's exactly what I'm talking about here!