The only reason we consider to populate the iMac 27 of current build with 32GB RAM is to postpone the swapping ram to disk as long as possible. Actually no software is used, nor tasks are conducted which would require high amount of ram. The only concern is to have performant system as long as possible. Even many hours, many days after last startup. That means i.e. swapping ram to disk should occur as infrequently as possible. Will populating the machine with 32GB ram significantly contribute to that goal? High performance and stability have the highest prio in our environment.