Wow.... I'm shaking my head but everything you say makes sense. That's one of the best arguments for a new system I have ever heard
One thing I can tell you is that the Axioms will do a stellar job on making voices clear without having to crank the system, and I expect they will be way better than the JBLs in that regard. That makes me feel a bit better about the upgrade, I don't think any of us wanted to push you into something that wasn't going to have an obvious "wow, what a difference" benefit.
Be nice to your wife, sounds like you have a good one there...