There are loads of people that buy them for collection purposes. I have a silver Panda that I love, I also like the Austrian Philharmonics and you have to have an American silver golden eagle. This is the market that you get on ebay and you might get on Facebook, although I am unfamiliar with Facebook. The trading of collectors' coins and bullion is an industry in itself and should not be confused with the mass market spot silver market. The collection market is full of investment opportunity, but to take full advantage of it you have to trade it like the other people in the market through ebay or other peer to peer selling. The Jewellers only give you spot at best, but the collectors will pay a premium for the coin or bar they want. There are tax advantages too, in the United Kingdom gold sovereigns are considered legal tender and exempt of VAT and CGT. This makes it a great investment opportunity, one which I have taken advantage of.
It's a voucher system.. completely free market... If you have a doubt you post for people to vouch for the person selling the material... I've had people I know about for me and I've moved a lot of weight on there
It is one of the investment areas I have made a lot of money in because of the tax exemptions and the relationship it has to market vulnerability.
Back to the original post. Unless you are able to buy into the $10,000s of coins or bullion at a time you won't get the premiums. That is what a lot of traders do then sell off the individual coins at a premium. You would also need somewhere to store them and have insurance in most cases. The other options you have is to trade the desirable collection market, cheap non minted silver rounds or scrap silver. If you go for the non minted silver rounds, as long as you can prove it is 9999% pure you should be able to sell it to a silver dealer for just under spot price. You will most likely get the supply from the internet but some places sell this stuff like antique shops and jewellers. Anyway good luck to you.
There are advantages to holding silver physically....period....in a world of constant and relentless inflation it is a great store of wealth...if you can't keep.your silver safe , what else do you own that isn't safe?