I don’t print any abrasive materials at all. Pretty much only normal PLA and PETG.
I noticed, that my print quality gradually went down quite a bit, especially in the last few prints. I had a lot of stringing, weird blobs, and scarred surfaces.
Now, the print quality is as good as it should be!
They are dirt cheap. You can get a set of 10-15 generic ones, in different sizes, for only a few bucks. Don’t forget that they are consumables.
This is what I did. I have not had to change nozzles since.
I will say, however, that this will definitely prompt you to git gud at cleaning nozzles, and inventing jigs and tools for doing so, because you’ll no longer just want to shrug and throw away your current nozzle if it clogs badly.