Agreed. Let's do this as a first step and check on the results. It'll be a ton more informative then all the forum discussions.
If it's not something that has any real effects, then it won't be used. The data you gather will probably not be very useful.
If this is something that gets implemented it will have to have some serious thought as to how to prevent abuse. Having a battle with another realm should result in a significant drop in the value. Possibly other things as well.