You are apparently very happy with a market that is defined by an economist who views it as you view the prediction* market.
Prediction markets are useful in their own right because they help people plan with information independent of themselves and more accurate and less biased than other sources. That is very similar to a market allocating a societies future allocations through rewarding holding of past investments. Both actually have many of the same problems and elimination of either can not prevent insider trading on information or significant resources being wasted on zero sum game aspects or faults in how such simple systems of reward function layers allocate as well.
(If you plan to propose to a partner in September might it not be helpful to have an opinion about the night of the 28th? Is that more or less important than the OTC penny stock for a probably defunct mine that possibly has copper? But why not pick equivalent strong points. If you are planning purchase like a next auto might you find future energy market related bets helpful to estimating long term risks for your choice?)
*typo