I don't mind RGB on Keyboard's, but inside the PC I wasn't really interested until I saw the Lian-Li fans that I am now using, because whilst they do add abit of colour, they are not overly bright etc, meaning they don't look like Rainbow Puke!
I could just set them to one colour but I honestly don't mind them at the moment the way they are.
I am still sort of tempted to learn how to make my own case, but I always go over the top with things so would probably end up building a case with 30+ fans
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7900X3D, 64Gb Corsair 6000Mhz, Gigabyte Aorus RTX 4080 Super, Samsung 980 Pro 2Tb NVME
Unraid Server, 130TB Supermicro CSE-846, AMD Epyc 7551P 32 Core, 64Gb ECC DDR4, nVidia RTX A2000