The last price that I saw for the Green Quantum was from bowlingball.com about 4 years ago. It was going for $89.99, and was listed as being the absolute last offering that they would have because the ball had been discontinued for some time. The thing to remember about these older Quantums was that the 16lb and 15lb balls had that great weight block. Anything lighter than 15lbs had a different weight block, but I can't remember exactly what it looked like anymore. I have 3 of the Green Quantums, and I have each drilled a little differently for different conditions. I am too old to throw the 16lb balls, or I would still be using one of them from time to time because this is an outstanding bowling ball. I don't think that an asking price in the $90 range is out of the question.