Why is Crafting still in the game?

[Nekodar]

I craft pretty much all of the gear I use for levelling the 5 classes I don't have at 50 yet.
Every 2-5 levels, a new gearset, with weapons/shields as I level up.
Let everything spiritbond and convert to materia...

[Tetsaru]

I craft pretty much all of the gear I use for levelling the 5 classes I don't have at 50 yet.
Every 2-5 levels, a new gearset, with weapons/shields as I level up.
Let everything spiritbond and convert to materia...

I used to do the same thing... until I got everything to 50.

It's kinda messed up, now that I think about it: you level up and spiritbind old gear to convert into materia to use on newer gear, but once you hit 50 and start getting endgame dungeon gear, it all becomes useless, unless you sell it, use it for crafting/gathering classes, or are working on a relic (which, I have all of those now too).