best value 1oz silver bar, is one that you have not bought.
This is really quite a simple answer, oh I know 'collective drivers' impact prices, but if one is 'investing' based on art collection, then one pretty *****
Now if someone was to say I don't give a stuff what the price is, I don't care about making or loosing money (even its its fiat), I just want that coin cause I like it, well that would be a different case
But that's not what stacking is about really is it. Not if you actually want to achieve anything with that stack