I could have spent that $10k on better gear, but it actually, I think, would've been a mistake, really. Sure, I could have had the inherent *potential* for better sound, but I would still be dealing with all the usual suspects that everyone else seems to be dealing with: EQ that doesn't really work well enough to truly solve problems, digititis, ss sound, "harsh" or "bright" recordings, best listening only at 4 a.m., upgraditis, insufficient timbre, tonal color, presence or sound staging, dependency on things like $$$ cables, critical speaker positioning, room peaks and nulls/room treatments...it even tamed how noisy that fridge is...all of that and much more has been either greatly reduced or eliminated. And that doesn't even take into account the transformational gains in both sound quality and presentation, all the way around.
Finding a way through this particular issue, for me, has proven to be the single biggest factor in finding that actual point at which I'm truly done with changing system hierarchy - exit strategy without compromise. I believe something like that might be the missing link for a lot of people. I suspect for most people that if they fail to investigate this aspect of music reproduction in their room space, they may be subject to the need to continually upgrade - and in vain perhaps because they might have reached their goals with less expensive gear, as I did - not by settling or compromising, but by finally solving all the right problems that were the ones that were actually standing in the way all along - and that would have continued to even after upgrading.
I think it's just possible we don't Rilly need the 'latest and greatest brand X', we just may need to focus more on what the longstanding audio problems actually are and how they can be fixed and what it might take to do that. Not for everybody for sure, but I can say that it was well more than worth it for me. No going back here.
Cheers,
John