This is something that WoW and some other games have; although in WoW, it's PVP gear versus Epic Gear, but the items are tailored to the activities/playstyle preferences of the playerbase.
Perhaps this would be something that could be implemented in some fashion.
Maybe a lower level of gear/items for players that don't have or want to invest the time into more strenuous, time consuming activities?
Also, currently, many of the EPICs in game are only equippable by multiclassed characters (or those that choose wisely in their one and only class). Maybe a string of minor epic mobs with piece drops to put together items equippable by single classed characters.
I know someone mentioned that there is nothing for a crossbowman.