The corsair VS series that you just recommended have a plethora of issues and horrific capacitors that are known for causing a lot of power ripple.
A lot of Foo regarding PSU's in my opinion, pc parts are becoming tainted with the mysticism i normally associate with hi-fi enthusiasts
Actually cheap maker caps can work equally well when new.
Question is more about long term reliability.
For example plug used to seal capacitor's can must me good, or electrolyte can evaporate/leak more or less fast.
Besides electrolyte staying inside especially low-ESR caps demand high quality electrolyte to stay operating in specs.
In some cases copied by cheap makers electrolyte lacked stabilizers, resulting caps self destructing even without any slightest use.
High quality capacitors makers are surely lot more precise about raw materials and do lot more testing of them and made caps.
With production itself being automated raw materials and regular testing is no doubt notable price increasing factor.
About 10 years ago helped neighbour chose parts (and then assembled it) for photoshopping PC.
Choosing parts I said that Fuhjyyu capacitors equipped PSU bundled with Antec Sonata II (bad cooling) case isn't known from reliability.
Five months later got call, that trying to start PC had resulted popping sound from PSU.
Next PSU with second tier OST/Teapo worked fair four years before developing very typical for failing caps cold start problem.
After that gave my some years used Seasonic M12, which kept working in that case for few years before in PC upgrade that case was ditched for modern case.
That PSU is nearing 11 years age.
When getting Dell U3014 (3½ years ago) I recapped my old rather heavily used 1920x1200 LG W2600HP (Korean SamWha caps in it) selling it to neighbour to replace his 20" 1600x1200 LG from time of that PC construction.
That 20" LG had two of the three SamXons in PSUs rail powering backlight's inverter clearly bulged.
I suspect it might have started to have cold start problems at summer with increasing room temperature finishing those SamXons.
After recapping with high quality caps that LG went to my father to replace
17 years old Nokia 449x CRT. (no cheap caps in that)
For comparison Samsung CRT I had before getting first LCD developed cold start problem in six years.
Samsung has used cheap capacitors literally as break up timers.
Underhand Tactics: Planned Obsolescence document included those.
APC Back-UPS ES of that neighbour also started going haywire, because of cheap Chinese capacitors in control electronics.
Digital TV set top boxes also have often cheap capacitors. (Topfield known for them)
Basically lots of stuff is designed to last longer only in light use.
With cheap capacitors being typically one of their weakest spots.
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