My two cents.
I have to agree with the answers above.
I think of price as being an exponential kind of thing generally with a strong increase in performance up to a point, and diminishing returns after that making it more about personal preference once you get to a "pro" level in whatever your considering. I find this particularly true with instruments, with a very cheap guitar being difficult to play and potentially not sounding very good at all. However, once you get to an instrument that stays in tune, is easy to play, and sounds fairly "open", it's really a matter of personal preference. These days, the cost at which that happens is a lot lower for a lot of things than it was in the past due to advances in technology. I think that this applies to mics as well, with the line audio being close to that tangent in the curve, after which it really is more about personal preference.
I have been using CM4s, and some Schoeps mics, for a while now and have a few recordings of bands in similar contexts recorded with each. The one I can share is below. This the same band, in the same venue with the same sound person, at two different shows with mics in very similar locations. The band has a residency at this bar.
This show was recorded with Schoeps CMC6/mk22s, modified ORTF (to account for the open cardioid pattern) from approximately the location of the cover photo, 6' in the air.
https://samply.app/p/dTtSOONy1QpehS1RZHON?si=MwM4exTQgoUbSFONGIz3QqxORdl2This show was recorded a few months later with CM4s, similar location and height, modified NOS (to account for the open cardioid pattern).
https://samply.app/p/LuhenUtNJZwHGr4lieuS?si=MwM4exTQgoUbSFONGIz3QqxORdl2While not an exact comp from the same show, I have done this in other situations and I do think that the difference in sound here is indicative of the difference I hear between these mics. In general, I think the Schoeps have a bit more refinement straight out of the box, particularly in the highs, with no added EQ. I suspect you could EQ much of that difference out.
If value for dollar is your primary consideration then the answer is easy. I do really appreciate that whenever I use my mk22s I feel like I will get a great recording that I don't feel the need to EQ at all and that the high end seems to play nice with my playback system. Your playback system, or recording situation, could be different and you could easily prefer the CM4s depending on application.
In summary, I don't think price is really strongly correlated to quality AFTER you get into something of decent quality, and the CM4 is a quality mic. Then it becomes more about what works best for you in your application. The CM4s are really good mics, at a really good price.