Guild Wars 2

Referring to this NPC: http://wiki.guildwars2.com/wiki/Armor_Master

I was thinking it would be a great idea to allow armour and/or that isn’t available/attainable after a content has finished (sentinels, givers for example) to be available for purchase from this NPC, and make that gear account-bound (like the rest of the gear that NPC currently sells)

Reason for this: The cost of trying to get this gear from the TP after the content has expired continues to increase, and eventually it would become a not affordable solution for many who want to build a character with the stats that armour gives.
Also, this would allow those who come into the game after the content has been done, or those that missed it, another chance at obtaining the stats of the gear that was introduced while the content was running.

Suggested Master Armourer NPC as a way of obtaining the gear due to items purchased from this NPC costing WvW badges and gold, and thus it doesn’t directly conflict with the cost for the same gear from the TP, as WvW Badges != gold.

TL:DR: make the armour stats that come out during content, but normally disappear at the end (sentinel, givers) available via an NPC (badges of honour + gold)