Something audiophiles go crazy over and music lovers don't notice as much.
Something that has caused folks to buy speakers and then get absolutely sick of their distortion and other problems.
Upgrading gears and find new sounds are fun! Problem is the return on investment of time, effort, and money is very small or disappointments! Worst thing is the investment doesnt give back any feedback. Many audiophiles dont know what to do next! Another gambling purchase is inevitable, or all previous are investments could be wasted. So, audiophiles must gamble with more investments.
If audiophiles know the weakest link in the chain, there will be no upgrade bugs. Compromise in sound is OK as long as the problem is identified. When the time and the price are right, the problem will be corrected. You are in control! Like stock market, the future is clear whether up or down, everyone is in control. If we dont know what the problem is, we keep thinking about it. That bugs us. Audiophiles (men) dont take that easy because of self-esteem, reputation, and previous investments. Man has to finish what he started. We love to get into something more serious. Take it like a man! Its sad that almost everyone has gone without finding the musical nirvana. Life is short! There is no time for experiments!
You need a sound system that gives you clear feedback. The feedback comes from good speakers which is the end of chain and a vital piece in a sound system. If you have upgrade itches constantly, you need a good speaker.
Back to OP, imaging is an easy part to identify in a hi-end sound system. Imaging must be combined with musicality. If you are not sure, ask your wife if she likes the music from your sound system. She is correct.