...The reason we do not release our physical address is because of the safety risk to our employees and families, as we hold and transport large amounts of silver bullion.
Whilst I understand this and applaud the forethought for employee safety, you're asking us, the community, to pay for goods which are 3-6 weeks away from shipping.
You state you need to wait for X amount of people to buy so you can get coins minted at a reasonable price, yet there lies a potential problem...
You don't meet the required number in time that means minting is delayed. The deadline then becomes longer and longer (as less people will buy due to no-one yet receiving their coin).
The question becomes do you honour refunds, pull a BFL (all sales are final, no refunds crap) or just disappear with peoples money?
The option for the latter is definately there because you've remained anonymous to 'protect employees'. You have no traceability.
Casascius has released his details, as has Smoothie. Both deal in silver coins and bitcoin. Both are technically targetable under your logic, yet neither have been.