The true test is how many of the 64.5% pay for it when it is released tomorrow.
It might be more accurate to test how many intend to purchase it overall, rather than just on first day figures.
After using the GM i'm defiantly going to purchase it, but only after a few of the bugs have been fixed (possibly 10.7.1 or .2) and a couple of software vendors have updated their apps to make them more compatible