Since the heiloom nerf I would humbly ask the dev donkey team to lower the heirlooms upkeep cost.
I am considering the heiloomed items as rare, got only one that item mw war spear. Normal war spear cost about 6k, masterworked cost about 15k which is cost of most expensive polearms. Its more than a half of all equipment. And for what? 3 points of damage and 1 point of speed?
I really can't see a reason why mid tier polearm should be that expensive.
I am not aware of other weapon but probably it is common now that using heirloomed weapon/armor have no economical sense.