I feel luck in that nothing huge comes to mind. Maybe it's because I'm cautious.
@curtdr you just made the observation I was thinking of sharing for days.
After 45 years, I know what I can audibly discern and know what I am paying for in this 'general' order: critically first is speakers, power amplifiers/pre, then source components although if analog, cartridges are important.
When I started, late 70's college, one norm was 50% speakers and cartridge, 50% turntable/arm and receiver/integrated. Well thought out in my mind.
Understanding the sound of all types of speaker technologies is smart. Once you know what you enjoy, find a few of the best sounding brands (to you). and work on acquiring a great model. if you're looking high-end, think used as they're taken care of, and the drop from retail is amazing on high end (e.g.: my used Raidhos).
With speaker sound, brand, and model done, I'd tailor the system components to complement it. Do not be afraid of some quality DSP room correction fixing your bass and room if it is in a true 'living area' and not sequestered in a cave (no cave for me). Decent cabling makes sense, outrageous cabling is for folk with no sense. (They think they hear 'something else' and that's nice at what they spend, $$$ :-)
(If you're wealthy and cannot make up your mind and exchange gear for fun, this advice wouldn't be for you. Some of us are budgets, small or large, and still want to maximize the end result, not take losses on constant switching around 'in search of something greener'.)