I make the same argument for
ancient coins that I do with firearms. You have a large investment/couldn't bear to lose your
collection. Why wouldn't you protect it in an adequate manner? For the
price of 2 'advanced' coins (or one new firearm) you can buy a steel, fireproof, HEAVY upright safe that can be anchored to the floor. I keep 98% of my
collection stored in 3 ring binders, locked in such a safe. (The other 2% of coins are in a safe deposit box.)
A 'small',
quality firearms safe (12 long gun) can be
had for about $400. The biggest question is what is the cost for your
peace of mind? Plus you can store other stuff, such as the wife's
jewelry there and
still have easy access.
If I lived in an apartment, the most valuable coins would reside in a bank, but thats just me.