I would get bored with the same color every day!
Understandable!
I think a tolerance for a certain level of technical coloration can possibly be explained by different approaches to what we are looking for
and concentrating on in a sound system.
If you are seeking technical accuracy to the source signal above all, then you may have the mindset that once that is achieved (e.g. low enough source/amp distortion, neutral-enough speakers well set up), then you are done. You sit back and the sound is whatever it is, and the sound of each track through your system is whatever it is. No more fussing.
On the other hand someone like myself likes to compare the qualities of a sound system to properties of real life sounds, and note what translates and what doesn't through a sound system. To that end, whether technically accurate or not, I'm evaluating "the sound of a system" and against what I perceive to be the characteristics of real voices and instruments.
And what I find therefore is that ALL systems sound "colored." To me even the most neutral, well behaved systems I've heard depart from real life in a way that colors the sound. Once I hear drum cymbals, sax, trumpet, acoustic guitar etc through a speaker system there is a certain timbral sameness and I know forever more generally how those instruments will sound through that system. There are no surprises, as there are constantly in real life sounds. It's black and white vs real life.
So, I end up choosing the system that sounds a bit more "natural" to my ears, and if that means a slight nudge in a certain direction, that's ok because I'm going to find a "sameness" to some degree no matter what I choose.
So it's like when I replaced my tube amps on and off for a month or two with a solid state Bryston amp. Once I got used to the Bryston amp in the system, it sounded different, but in it's own way consistent with the same "tonal color." The CJ amps just nudged the whole system's tonal properties slightly in a direction where I'd appreciate the sound of everything that much more. (And I'm only referring to tube amps out of convenience - I could be talking about different speakers or whatever).
I totally get why anyone here doesn't want to introduce deviations from accuracy, and also why someone else may find certain colorations add a sameness they don't like. I'm just trying to explain how others like myself end up sometimes preferring some level of coloration, while not utterly abandoning the idea of accuracy outright.