I definitely would NOT disagree with that statement.. Some will disagree, but I don't count WD-40 as a gun oil.
if your wanting to sell your safe try the firearms/accessoories sectionAs far as I know, ammo doesn't 'stop working'. I store my pistols in a biometric fingerprint safe, only 109.99 off ebay. I purchased it only a few months ago, but I am very happy with the safe. If anyone is interested, the listing is 'Biometric Fingerprint Gun Pistol Safe keyless new NIB'