Ah, but you had to pay
more for less mustard, didn't you?
In Dave Hunter's "Guitar Pickup Handbook", pickup-maker Kent Armstrong (son of Dan) rebuffs critiques of ceramic-mag pickups by saying that one has to wind
for ceramic mags. His view is that the harshness associated with ceramic occurs when people think that everything which applies to AlNiCo can just be transposed, as is, to ceramic. I don't have any experience with his pickups to be able to question or reject his views, but it's worth considering. When critiques of digital recording as "harsh" and "brittle" started to emerge in the mid-'80s, one of the deans of audio (Julian Hirsch, I think) had a piece in
Stereo Review where he said that such criticisms stemmed from engineers simply replicating all the mic-ing techniques traditionally used to help instruments "cut through" on bandwidth-challenged mag tape. He suggested that, as time and experience accumulated, audio engineers would eventually adapt their methods to bring out the best in the new digital technology.
So maybe Armstrong is on to something. Certainly from a cost and environmental perspective (cobalt mining is not particularly green, and has geopolitical consequences), more ceramic pickups would be nice. Whether he is on to something
true, I can't offer an opinion on.
There is also the matter of whether a few small changes to the guitar circuitry, like a small cap here, or change in volume/tone-pot value there, can massage typical ceramic pickups into something pleasing. Again, I'm agnostic.