moogle and ifrit weapons not to be traded for seals?

[Dzian]

ok, this sounds like a trap
give too little seals, peoples will definitely rage
give too much seals, (some) peoples will whine on it
oh what to do, what to do..

i'm guessing ~2500 seals per weapon.
i'd like it to be more but i cant see it being much more if it is. maybe i'll be pleasently suprised