How necessary is a zerostat gun?

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Wow, I didn't even know those things were still around. My roommate had one when I was in college back in 1975.
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In So Cal where the humidity can be on the low side I find it necessary!!!

Not needed unless you get a lot of static. Doesn't work on children.

I have the Ionoclast and use it regularly on vinyl and cd/sacd/dvd-v and dvd-a. Since you can hold a cd in your hand while using the Ionoclast it is possible to feel the difference in static release. It makes the whole front end smoother and it makes me feel better. Just part of the process. Listen every day.