Ted, look at it this way. If your system costs less than $100,000 you have a ways to go. I'm not joking. This is the only measure I can use to give you some idea on what I think it takes to build a system that I would be happy with. Your own happiness is up to you. It is more about values. How much are you willing to spend for better sound. None of us have systems that can not benefit from something somewhere. Technology always advances.
How do you know when a stereo sounds good?
When do you know your system is pleasing to listen to? How do you conclusively prove to yourself that your system sounds good to you? How do you determine that you enjoy listening to music through your stereo? Do you have a suite of measurements that removes all shadow of a doubt that you are getting good sound, sound that you enjoy? Please share.