Let me tell you why I think there will not be any trading in Destiny (for a long time, anyway, if they ever DO make that decision). From a psychological standpoint, your concept of people getting tired of farming for gear is wrong. Or rather, it would be wrong if the loot system was working optimally. The concept of reinforcement in psychology can be a little tricky if you're not familiar with it or don't care much about the subject, but without excessive explanation: the random loot drop "table" is a type of reinforcement "schedule" which has a payout with an indeterminate interval. Loot drops are positive reinforcement, meaning that getting a loot drop strengthens (makes more frequent) the behavior that triggered the drop. This intermittent scheduling is [i]the strongest[/i] reinforcer; it is the same concept that drives slot machine addictions. So really, this grinding for engrams thing they have going on is exactly what they want. They want you to see that occasional purple engram and flip out, because that strengthens your desire to keep farming. Kind of. Obviously everyone is different, but the majority of people are sheep. Geeks tend to be deep(er) thinkers, so I'm going to hazard a guess that many people on these forums feel like they are above such tactics... but making accurate self-assessments is a psych lesson for another day.