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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.
Bought one of these a while back, and it's been great. Yeah, you can get hundreds of cheapo nozzles for the price, but not having to deal with increasingly shitty prints and nozzle changes has made it worthwhile for me, at least. I don't even use abrasives, mainly just matte PLA.
Ackschually
PLA is not abrasive by itself but it's additives might be. Titanium dioxide is a common colorant for example which might end up eroding your nozzle slowly.