What improvements did you hear in going from entry level to high end Audio?

N80 great observation. I will tell you I have heard probably 20 systems that cost over 200k.  They systems I heard was about 700k the second best 200k. However the third best came in about 35k. The guy who put it together was really experienced at matching cables and components and he cheaply soundproofed his room. I really enjoyed his system. I would go by and listen to hours on end. I enjoyed it because had managed to get the supersystem sound at a fraction. He researched each component and took some advice from a few industry vets and hit an enjoyable home run! As far as STFU is concerned I see the same trolls on a lot of threads that say the same comments and in their minds and mouths they think they are geniuses. That was for them. Lol.  You can have a great enjoyable for less money and I admire those who are smart enough to spend less and still build a great kit!

Pipebro is that what the tapping sound is ? I always thought it was Stills tapping time on the body of his guitar. Not sure I would use that as a reference for a high end system, I can hear it on my samsung tablet and I'm over 60 with high freq hearing loss. 

I am glad that you enjoy your system Calvin.  That’s all that matters.  
I am in a good place as well.  I have had more expensive demo stuff in my system, and it didn’t work.  Not in it for “my stuff costs more than yours” factor.
And I truly believe that I am at the asymptotic part of the curve, where shelling out a lot of extra cash will only marginally improve things.
  For a long time my base system was my College dorm system—Advent 3 bookshelf speakers, an entry level Pioneer receiver, entry level turntables, cassette recorders, and then a Sony 14 bit CDP.  When I finally started upgrading, each successive change was huge.  Now, not so much

Mahler I agree.  Now I am where I am if I spent more the system would only probably get small fractions better.  I’m going to pretty much keep what I got and be happy. I guess some people have approached my threads like I’m bragging on how much I spent.  I’m actually not and to be honest my system costs a fraction of the other guys I know.  Their systems cost 2,3,4 times what I paid.  I’m at a good spot in the hobby.  I think I have good enough stuff to pull a great sound that can surpass the way more expensive stuff 

For a quick answer:  Getting the bass correct.  I changed speakers over 10 times. Combinations with subwoofers didn't work. About 8 years ago I went with Evolution Acoustics MM2 which nailed it