Is a relic worth it?

[SnowVix]

You don't need the relic because you can get a weapon of the same item level for much less effort by beating the current extreme trial. You can get a weapon of nearly the same item level by purchasing the crafted one from the market board.

For a higher item level weapon you can spend 7 weeks doing the normal raids to get what you need, or do the savage versions of those raids.

It's mostly about glamour, customizable stats, the brief times it's actually a better weapon and just giving you a reason to bother doing the content associated with it. If you don't have much time you can settle for the crafted one and you'll be fine.

all of those weapons, despite item level variance, are at best equal, or unequivocally worse weapons than the current relic. 515 + 3 maxed substats beats out 520 with poor substat distribution, 515 with 2 standard substats & 2 materia slots, or 510 with standard substats, 2 materia + 3 materia overmelds.