How long does a stylus last?

I had my Benz M.09 served me for about 5,000 hours before I developed misperformance on inner tracks of some of my records and traded it in.

I prefere to get ones with 0 hours on them and certainly among those I can afford.

I've been looking at Koetsu. They don't become affordable (generally) until about 300-500 hrs. I have a Shelter 501 mkII and a Dynavector XX-2. ("My System" is not updated)

I have had a Koetsu Black that I bought second-hand in 1986. I got 10 years use out of it before the stylus degraded.

I've just had it re-tipped by Benz Micro for €200 (the cantilever and suspension were fine).

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Keeping your records clean with a good record machine and cleaning fluid along with cleaning the stylus before each play with a Zerodust or Mr Clean Magic Cleaner (DIY - Doug Deacon invention), greatly extends the life of your stylus.
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Rgds,
Larry