cost to upgrade heirloom armor worth it?
Upgrading them is pricier still: a level 90 upgrade costs 1000 gold for armor and 1200 gold for weapons, while a level 100 upgrade costs 2000 gold for armor and 5000 gold for weapons. Still, even at those prices heirlooms are worth getting whether youâre a level 100 looking to level a new alt or just getting started.