Only real advantage is being able to access more than 3 gig RAM, and as BIAB/RB use disk streaming (AFAIK -but correct if wrong) there is no need for more than 3 gig of RAM, ergo no samples are loaded into RAM...additional RAM is wasted really, unless you want to multi-task a few other programs alongside BIAB.

Add to this PG would then need to licence a "Bit Bridge" program to run the 32 bit VSTs and VSTi's that will NOT run natively in 64 bit systems without one. Or write one themselves.

btw I do use a 64 bit system myself, so I understand where you are at on this.

Dennis