Welcome to the forum. They are as good as any other 1 oz silver bullion coin, i.e. a 1 oz kangaroo, 1 oz Canadian Maple, 1 oz Philharmoniker etc. If spot goes up, the price goes up, if spot goes down then the price of kruger will go down too.
Thanks, nice to be here... Ok, I was unsure if there was a pecking order when it came to the 1 oz silver bullion coins. Surely people prefer some over others?
^^It's personal choice really, but those loose coins without capsules are all pretty much the same. Put it this way, if you were desperate for money and you wanted to cash in either of those coins mentioned at a bullion shop they would pay you the same money for it.