Where is the significant point of diminishing returns on hi-end turntable?


For those that don’t know me I am newish to this game. Yes, I believe this chase for perfection in sound reproduction is a game. There are endless variables affecting the sound of every system and 100x that in opinions on each of these variables. I love cool $hit as much as the next guy but I am looking for an analog rig and I keep getting drawn into the seemingly endless "what about this option that costs tons more?". I started with a $6 to $10K budget and now I am considering a $25K setup (Table, cart and phono stage) after talking to a local retailer. I will be blunt, I want to be that guy in the Memorex ad from the 80’s that is getting blown away by his system (my impression is he is overwhelmed by the amazing sound coming from that speaker not the volume). Now that I have acquired some pretty descent stuff I am spending 15 plus hours each week listening and really enjoying this hobby. I don’t want to have any regrets and just be marginally satisfied with my setup but where do I draw the line? Back to my initial question; what is a reasonable amount to spend on an analog setup to achieve the best bang for the buck? I may be somewhat unique in that I don’t want to constantly be upgrading my equipment, I just want to buy great products the first time that are very satisfying and spend hours listening to great music. I don’t want to be the guy always chasing the next great thing.
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Almost forgot to mention that we connected my "meager" Parasound JC3+ and it was not a significant downgrade over the Herron.  The Herron had a better soundstage whereas the JC3+ felt a little more constrained, however, it was not horrible.  Likely the difference between SS compared to tubes.  Certainly a quality phone stage for the money IMO.
Dear @mmporsche : Lenco, good. Do you already decided the cartridge/tonearm combination and the rigth phono stage for your speakers/room can really " dance "?

regards and enjoy the music,
R.
I am looking at a used AF Lenco with an Origin Illustrious arm.  I really enjoyed the sound of the Soundsmith cart at RMAF this year but I am very open to suggestions.  Please and thank you.
If you go that route, you might have AF make a couple extra arm mounting boards, finished as you want, so you don’t have to try to match finishes at some future time.
@railiruegas I agree with you entirely about speakers being the key. I was just acknowledging that mmporsche has gone down a particular path that likely precludes a very costly switching of speakers. For sure the Wilson Alexandria would be in another different league (not necessarily better if you like low power tube amps) and  from what I can gather Mmporsche is really into the single driver whizzer cone style speaker and he has top of the line in this style.