Cost to max all crafting jobs?

[Kacho_Nacho]

How much gil would it cost me to go 20-90?

Especially if I wanna speed run it via spending gil?

From what others have told me, around 27 million. It'll be a lot cheaper just to take your time. It's not like there is any reward for doing it ASAP.

[MahthildisMMORPG]

From what others have told me, around 27 million. It'll be a lot cheaper just to take your time. It's not like there is any reward for doing it ASAP.

Isn't the reward being able to make a return on the investment?

[Rilifane]

Isn't the reward being able to make a return on the investment?

Not really because max level crafting isn't even the best source of income.
Crafted gear loses value incredibly quickly to the point that you're often better off selling the raw materials (especially tome stone mats) than trying to compete in undercutting wars.
Raid potions and food are decent because they are consumable but sales drop late into the tier and you need decent gear and melds to craft them as they have stat requirements to even start the craft.

On the other hand, you can make money with low level HQ crafter/ gatherer gear (not all slots and level ranges and you have to be careful to never flood the market), housing items of all level ranges and other simple things like crafter syrups, gatherer food, HQ higher level HP potions, spamming collectables for white scrips and selling materia etc
None of that needs max level crafters or decent gear, you just need to cast a wide net instead of trying to focus on a single market like raid pots and look for opportunities like a new ward being released means temporarily higher demand for housing items.

So I think the best thing you can do is level efficiently without spending millions of gil on buying materials to rush it and then noticing that you don't make all that much money at max level.
Use the various avenues for exp: beast tribes, GC turn-ins, collectables, Ishgardian Restoration, levequests, class quests, custom deliveries etc. and combine them depending on what materials you have or want to farm. Rushing everything to 90 isn't as good for making money as you think it is.