People think they have to be clever/smart when simply not being stupid and not doing stupid things is often more than enough. Then they will go onto gold diggi

People think they have to be clever/smart when simply not being stupid and not doing stupid things is often more than enough. Then they will go onto gold digging exercise to prove that they are smart to be smarter than those pesky dealers. In the end when thing they bought turns out crappy (no gold in that mine:)) they will get defensive about it and will pull all kind of mental gymnastics to confirm what they did was worth investing time. So such person won't even feel the opportunity cost, because they will make themselves believe that effort was necessary to find that good and they 'gamed the system'.