What is the best storage for cartridges?

Dan,

You have not included the 12 carts on the arms.
So the question is a completely different one... :-)

Best @ Fun Only

Dear Thuchan: With all respect I can see that you don't know what to do with your time and money, good looks nice.

I can tell you that several of those cartridges already survived for more than 30+ years ( as mines. ) with out no humidor at all!!

Regards and enjoy the music,
R.

LOL! We have a saying in the U.S., down south. "Well, bless your heart!" :-)

... and that single phrase can be universally translated to mean just about anything.

Not really. :-)