More ram always makes it worth it, especially when going that far over your physical ram size.Went up to 64, having been to 48GB down too 32GB because of conflict with the cooler of ram stick, I new already that some stuff would use it to have more than 32.
Reached around 44 gig with (20 compressed) in some large compilation work, wonder if 12-16 gig of ram cache could be worth it.