You just simply cannot manipulate the price if you have a large amount of capital....Sure you could in theory have a large percentage and hold it. But that is the theory used to fear mongering against all real currencies. Such as Gold, Silver, Bitcoin, etc.

What gives an added value to these entities is that some people hold them, not to mention intrinsic values and that there will always be a limite amount in existence.

There's just something remarkable about this world and the limited amount of unique things.