The draw of Finest is 3 fold: Refractors, autos, and redemptions.
Finest Baseball and Basketball rely on redemptions, with basketball's reliance being the heaviest. As you know the 07/08 Finest redemptions expire on June 30, 2009. So the question becomes: Why are the boxes still selling for $70 plus?
Consider the fact that 07/08 finest has been a shit product. I have yet to see a good break. I busted 3 boxes and didn't get 1 auto worth a damn. Compare that to Finest Football 2008 where I have gotten many nice autos. ALso, the cards hold no secondary value except for the low print run auto's. Even those are dubious compared to how hard of a pull they are. Refractor lots, a box worth hell even a case worth, often sell for less than $10.
I suppose there are those ebay sellers that don't pay attention to their auctions like this guy. But what gives? How much value does the unopened product keep when the redemptions expire? BTW 06/07 Finest has been selling for $37 a box for almost a year now.