"The Law of Diminishing Returns"???

"that any components, amps, pre-amps over $1000, the improvements are very very small"

This is not true... unless you ask my wife! If you do critical listening as most of us do, I think you'll find there is quite a big difference in components over $1000. There are hundreds of components out there from different manufactures who sound very very good, however they just sound "different". (Such as tubes vs. solid state, and box speakers vs. planers.) Tweaking a component is (usually) a low cost alternative to upgrading the sound, however, don't think that buying equipment over $1,000 will yield little improvements.

I do believe that synergy is very important in audio equipment and it is not all about price, however I think the original poster is trying to find out that once you get over $1,000 are the improvements very very small? And the answer is no.