The trading feature needs to come out already. It will be so much faster to grind out say 30k to buy an heirloomed weapon from a gen 10-20+ guy.
Doing quick napkin math I've realized how futile it is for my gen 1's to try and obtain heirlooms through retirement:
Given an average of 2.5 multiplier
Gen 1 : 3556.96 minutes to go from level 1 - 31 and retire. 59.282 hours.
Gen 2 : 53.89 hours
Gen 3 : 49.40 h
etc
From what I've heard there's a 9k cap on how much xp per round you can get, so taking that into consideration:
Gen 1-3 (first masterworked weapon) = 162.57 hours (6.77 days of solid 24 hour grinding)
Gen 10-13 = 29.64 + 26.94 + 24.49 = 81.07 hours (3.33 days of solid playing)'
Gen 20-23 = 19.76 + 17.96 + 16.46 = 54.18 (2.2 days) * Capped 9k xp gain @ gen 23 given average 2.5 multiplier *
Anyways, I like theorycraft and napkin math. It's an RPG after all. But really puts a light on how quickly I'd like the heirloom selling/trading feature to be implemented.