Good king moogle mog gives ilvl 80 weapons I think they said which is on par with relic NQ and Titan weapons. Relic has the chance to be made into +1 so it's not gonna put people off getting that, and in the case of Titan most people get their relics soon after killing him so they don't really try for the weapons anyway. The main reason people do Titan is to complete the relic quest making the weapons that drop a bonus for alt jobs you're levelling, or they sell wins of course but most likely if they're selling they'll already have relics.