Ok First of all I have heard 100k amps, 50k amps and 40 k amps as well as stuff 300 to 16k.
The best sounding gear I HAVE EVER HEARD was Pilium…you never heard of Pilium because you have not been to enough places.
Audionet is also good as well as some of the new D’Agastino stuff.
I use a 9000 Luxman integrated now that replaced $16,000 class D Mola Mola Kaluga monoblocks. I am saving for a $40,000 Pilium Leonidas integrated that sounds better than some 100,000 amps I have heard. It is not just price it is sound quality I am after. You probably just heard a lot of budget stuff under 25k most of it is trash. You have to seek things out. By the way Magico who has an unlimited budget voices their M9 speakers that are $750,000 on Pilium amplifiers.