Crafting and gathering jobs are the best way to make a lot of Gil efficiently. However, the amount of time you are required to put in leveling one to where it starts getting you money is just... mind-boggling...
So I was really happy when Stormblood came out and I saw how easy it was to get Materia VIs. With some of them reaching 300k at the time, I was easily able to get over 10 million Gil in under a week. As someone who had never touched crafting/gathering, I felt like that was quite an accomplishment.
They dropped to under 200k and are now fluctuating between 70k-100k, so it's not as easy as it was then. But honestly? Between hunting A/S-ranks and tanking leveling roulettes for Materias worth 85kish on average, I'd much rather do that to earn money than level up a crafting class. Especially when there is virtually nothing you can do in this game with hundreds of millions of Gil.
And I think that's a huge flaw in this game. Not only that there's nothing to do with the money (other than controlling the market), but that there's really only one incredibly boring way to do it efficiently.
