From the Batmobile to highend electronics

A long time ago , I saw a Ford Mustang with so much added equipment ( foillers , deflectors , etc )
that It was looking like the Batmobile ( vintage series )
I remember saying that with all the money , he spent on this Mustang , he could have bought a Corvette.

I was reading today about Synergistic Reseach Galileo Gound Block : 7 K $ ... The torture never ends.
https://positive-feedback.com/reviews/hardware-reviews/synergistic-research-galileo-sx-ground-block/

Then I tough :I have bought a good system.Then I added a power conditioner. I added Nordost power bar . I added Nordost QRT 1 and QRT 2 , many of them. I added Schumann Wave Generators , etc.
I was thinking to add Nordost QKore 3.

If I would have take all that money, I could have bought the flagship integrated amplifier rather than the little brother.

My question is ; all those added gears , do they bring you system near a top level one with all the money spent ?
Or is it wasted effort. Diminutive returns .
My system looks more and more like the equipment in the Batcave.