I've been tracking silver on a few sites (apmex, JD, ebay) and there's not much stock for sale. My fav coin - Libertads - are scarce as hen's teeth and commanding very decent premiums. Even ASE aren't 'cheap' anymore.
I also notice that OZ bullions dealers such as Ainslie (Bris) and KJC (Syd) have very little variety in terms of product.