I'm just too cheap to pay for them though...
Personally I'm with you (but black), my entire desktop is just one color, and if a component is available in RGB and non-RGB and the difference isn't too big, I pay extra for that non-RGB version (which doesn't make sense it's even the case, but here we are).
I guess you could argue that we're all obsessed with the looks, some that all RAM slots are occupied, some that RGB is everywhere, some that the PC case should be off-white and slowly morph into beige, others that everything should be minimally black.
I don't particularly want to install the bloatware required just to turn off the LEDs, so I've resorted to hiding the PC under a desk at the other side of the room and have long DP and USB cables to the desk where I actually sit. This also has the nice side effect of not being able to hear the fans either!