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<p>[QUOTE=&quot;Valentinian, post: 2809389, member: 44316&quot;]It is possible to regret passing on a special piece, but coins cost money--usually in limited supply-- and the money not spent can be used to buy another coin, or several other coins. We often feel the negative (coin not bought) more than the corresponding positive (coins bought instead). Daniel Kahneman got a Nobel Prize in economics for work noting this type of economic behavior (negatives valued more than positives) and other behaviors that seem &quot;not rational&quot;.[/QUOTE]</p><p><br /></p>

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