Seems it would make sense to use tranditional meaures of value, that is cash flow, earnings, dividend streams etc rather than what could be fanciful figures dreamed up by people who are trying to gain from high valuations.
I kind of remember bre-x a few years ago....
That was a case of incredible valuations based on estimates or reserves that finally didnt exist at all.
An established cash flow from a mining operation tend to allow for comparison with other investments, both resource and non-resource, and thus allow for a reasonable value of purchase to be put on the resource as a whole.
