Keeping Spend Among System Proportional?

Can I assume that most folks keep the spend amongst components and accessories proportional or, in line between the entire system?

For example, here's how I spread my budget:

Amp $2k
(integrated w/Phono)
TT $3k
(arm direct wired)
Cartridge $600
Speakers $1000
Speaker Cables TBD

Has anyone ever thought they had a component that punches out of their weight class and felt justified in spending out of proportion?

For example has anyone spent more on their cart than their TT? Spent more on their speaker cables than their speakers? More on their arm than their TT? etc.

Curious to hear about some of those examples.

I may have the budget to reasonably spend around $800 on speaker cables but, feel compelled to keep in the $300 range.

I researched this concept a few years back to make sure that I wasn't "getting out over my skis" with potential component purchases. I determined that "conventional wisdom" is actually grouped into the following categories:
1. Speakers should eat up most of your budget
2. Power should eat up most of your budget
3. Sources and related items directly attached to them should eat up most of your budget
4. DIY all your stuff, have fun, save money, etc.
Not helpful?
I agree.
But it taught me that there is no right way to practice this hobby or spend your budget. Whatever you currently own stick with it for now and build around it but armed with knowledge. Agon's forum history is rich with information. Read it. Find a current member whose posts resonant with you and owns or has owned equipment you are interested in. Then PM them for advice. It is almost a certainty you will have found a kindred spirit who is willing to offer insight to you as you build your system.
Hopefully this is somewhat helpful.

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. Speakers -- $3K

. Electronics (Preamp and Power Amp or Integrated, and Phono Preamp) -- $3K to $6K+ (Depending On Speaker System)

. Digital (CD Player or Transport, Music Streamer, DAC) -- $1.5K to $3.5K

. Turntable -- $3K (-/+)

. Phono Cartridge -- $400.00 to $1.5K

. Interconnects and Cables -- TBD