Aside from having the critical listening syndrome, which I've acquired as well, I think you also have developed what most audiophiles( not music lovers)have and that is chasing the elusive "absolute sound" Which basically means you'll never be satisfied! This is unfortunately one of the big drawbacks of this hobby; continually upgrading.
If you are others don't think this is true just look at how many ads are on this site on a daily basis!!
Having said that, I will also say that once you have reached the mid-highend level with your system, in order to improve on that you will generally have to move up another step, possibly two in order to get any meaningful improvement.
So,finally I would say to you look into tweaking. I've found that there're some good not to expensive tweaks out there that are definite improvements. (look at my system setup and some of my threads and responses)
Addendum; listen to the music not the equipment!
If you are others don't think this is true just look at how many ads are on this site on a daily basis!!
Having said that, I will also say that once you have reached the mid-highend level with your system, in order to improve on that you will generally have to move up another step, possibly two in order to get any meaningful improvement.
So,finally I would say to you look into tweaking. I've found that there're some good not to expensive tweaks out there that are definite improvements. (look at my system setup and some of my threads and responses)
Addendum; listen to the music not the equipment!