Thanks!
As I said for a couple others you won't get rich from this but if you have the scrap on hand its worth the time. Its hard to estimate exact yields as it has lots of variables. Older parts are better as they had less refined techniques for gold plating the contacts, ie thicker plating.
Cool so getting old computers from garage sales and stuff would be a good move aye. Another reason I was wondering about the average value (i comprehend how many factors there are) because if I saw an old computer for $5 for example I might know if its worth it etc.
ANywwys thanks for the time