"Should" is a personal normative statement. The very nature of the market is that my "should" is different from your "should", which is also different from everyone else's. You are free to disagree with anyone and everyone, but the price is the price is the price, defined only by the prevailing "should"s of the last two people who came close enough to agreeing on the current price to actually make a transaction. In fact, the only reason that transaction went through is because those two "should"s fundamentally disagreed on the future price, or they wouldn't have taken opposite sides on that transaction.