Difference is an acoustic sim is not practical for every person. Some never have a need for one.
Equally true for an editor. Some never have a need for one. Like me!
What is interesting is why we all spend (= waste) our time debating the use or priority of an editor for anyone when we all probably would sound VERY much better if we spent that time practising?
I will now fire up my KPA and have FUN!
Cheers,
Mats N