The problem with the runes for me is that a legendary armor piece costs around 300-400g to make where a legendary rune costs around 500g to make. would have been fine if legendary sigils were also the same or a bit more expansive then a legendary weapon but they are the same price as a rune, where a legendary weapon is around 1100 to 2000g to make (depends on tier 1 or tier 2 weapon ofc). It just looks like anet just thought of some random numbers without actually looking at the prices of the legendary armor and weapons.