Apple Logic Pro /LogicExpress Discussion

This article which is linked from Apple directly :

http://www.loopinsight.com/2010/01/19/logic-pro-64-bit-the-talk-of-the-namm-music-show/

makes this little comment :

"One problem plug-in makers face is with the Pace Anti-Piracy 
technology. Currently, Pace requires plug-ins to be 32-bit, so some 
plug-ins may take longer than others before making the move to 64-bit.

Pace declined to comment for this story."

Also the only advantage of 64 bit seems to be huge mega sample sets. 
However, I am suspicious that there may be a performance hit when using 
data twice as big or having processing on these double large integers.