https://speakerchoices.com/?pricemin=20000&pricemax=45000
I don't think you will get a better sound IN YOUR room if everything is already optimal. You will get a DIFFERENT sound from different speakers. Which may be good enough, if you have the itch to spend 25K. To me, it's a questionable investment, but of course you earned it, you enjoy it. Strangely, the choices aren't overwhelming in your price range