Yep, any other conclusion from the mentioned study would be suspect unless the asymmetric cost of going backwards was somehow controlled for. Otherwise this is

Yep, any other conclusion from the mentioned study would be suspect unless the asymmetric cost of going backwards was somehow controlled for. Otherwise this is 100% explainable as a hoarding instinct because there is uncertainty about what else is available. Depending on a given person’s risk aversion, it’s entirely rational to take this view of the opportunity cost of passing on early choices you can’t revisit later.