If I could wave my wand, have things my own way, EVERY item, ALL of them, on my toons & account would be tradeable, & mine to do with entirely as I please. As is, they aren't really mine, more like leased or rented, as I can't do with them as I please. That said, NGD has made it the way it is to encourage more xim purchases, understandably, but also, as I understand it, to make duping of various stuff far more difficult, as it's been a serious issue in the past. Is there some other workaround, another better way to prevent duping abuses? I wish....
P.S: As to lvl 70 cap, that's impossible unless entire game gets reconfigured/rebalanced. Linear soak + %-based enhancement spells + higher base weapon damages + same old lvl 50 spell values = does not scale well, at all. Lvl 60 cap increase very nearly broke CoR. A 70 cap definitely would....