And the winner is....
I say $50...don't forget to quote each poster so he/she can't edit the figure later.
Congratulations to
doobadoo for getting it right!!
And in second place, we have Bjork:
$50 then rebound to ~$75-90 for a while
doobadoo was first with the right guess, but Bjork got it right too, though with an added prophecy, that I guess was not really correct.