Hi End rack really deliver?

Depends. If you only have a few components consider a long/low piece of furntiure with a surface area large enough to hold all your components. Here's the twist:

Each component (maybe 2 max- size dependent) will be placed on a maple type board, under each board a set of Machina Dynamic Promethean springs. This is a simple and very effective rack.

People believe they hear anything, so no doubt, some rack will be "jaw dropping".

its really impossible to audition a rack. just buy something you think 'looks' good.

I agree that is difficult (but not impossible) to audition a rack. I also believe that the aesthetics of your listening environment are an important contributor to enjoyment of the home listening experience. Twenty years experience also leads me to believe that a happy spouse is also critical to an enjoyable listening experience in the home.

That said, personal experience also tells me the importance of a solid foundation for your equipment. I was dubious until I installed my equipment on an EquaRack. (You can reference my impressions summarized on an equipment review thread on Audigon; just search for 'EquaRack'.) There was a definite drop in the noise floor which resulted in more low-level information. Bass was more extended and improved in quality. The whole musical picture seemed more 'realistic'.

Fortunately, there are several attractive products including Silent Running Audio and HRS that would fulfill your audiophile needs and should make your spouse happy.

Good luck.