I, too, don't understand this hobby. I'm here to learn and offer what little I know to others who are asking. I enjoy the music. I am not obsessed with perfection. I am happy with what I have and I am currently focusing on room improvements. This is also a secondary hobby and the primary one (astrophotography) takes up much more time and focus and can also become a money pit or you can learn to make what you have work to its best capabilities. I fall into the later category. I'm willing to fiddle with what I have to improve things and create a better product.
My son has at least a dozen bowling balls, yet with my 3 balls I held a league average higher than he has yet to achieve. Why, because I focused on what I had and learned to work with those items. He, on the other hand, seems to be trying to buy a higher score. It doesn't work in bowling, astrophotography, or in this hobby. Albeit in the audio you can buy a system that needs less "help" from its environment.
I fully agree with @rvpiano 's 4 points.
1. If you listen for sonic problems you’ll find them.
2. Since it is a hobby, you feel you have to play with it.
3. If it sounds really good, leave it alone!
4. Start enjoying the music!

