A lot of you are really against calling this pay to win and I can see why... but I definitely think we should agree that this is certainly "pay to get an advantage".
Being able to sell more items gives you more gil which in turn allows you to buy more things. Sure, mostly glamour. But lets be real... who hasn't heard the saying that "the real end game is glamour"? In any case, glamour is something that gives many people great joy. Now... lets imagine a scenario.
You have crafter A (Alex) and crafter B (Brian). Both of these crafters have worked very hard to level up their crafters all to max rank, as well as gatherers. However, Brian pays for max retainers and for the sake of example, lets say Brian has a LOT of money and also pays enough money to be able to change his MB listings through the app literally whenever he wants. I could go into a scenario where Brian just undercuts endlessly and bulk lists, completely pushing Alex out of the picture... but honestly that doesn't matter. The main point is this: even if Alex works just as hard as Brian, it will take Alex more than double the time to make the same amount of gil as Brian, assuming they are able to make the same products and put in equal effort.
In the end, Alex and Brian can both reach the same place but at different times. However, what if you could simply purchase raid tier gear? Lets say.... they allowed you to purchase it on the mogstation a month after the raid has been out, giving enough time for people to get their world firsts. Everyone would outcry, "But that's not fair. You have to work HARD to get that gear. It should be a status symbol." To you I say... Oh? Is that so? And crafting doesn't take hard work and dedication, huh? OR "Oh but it gives an advantage because better gear lets you clear harder content" and to that I say, "You can also buy gear to clear harder content". I don't like how people underplay the dedication it takes to be a crafter - you can't lie.... maxing your crafters and gatherers is a PAIN. That's why so many people don't do it. And worse, because this game lacks a gil sink people say that gil is worthless. That may be true, but you know something? Maybe... just maybe there are people who pride themselves in having enough gil that they're able to purchase those new minions as soon as they're released. (This is RNG so you can't really rely on your own retainer to get that for you - but you know if you have like ...idk, max retainers you can get it much quicker can't you?) Maybe there are people who are proud to be able to have glamour items relatively quickly. Which, yeah... again, you can make it yourself but sometimes it's difficult to get all the mats and that's where having more gil comes in. Maybe some people just pride themselves in having a lot of gil?
I think it's ridiculous that some people think that they can downplay what other people enjoy about the game and dictate what matters and what doesn't. You don't get to decide that. To you maybe gil and fashion items mean little but to someone else maybe it means a lot. Tell me why someone who has more money should be able to get these items faster than someone who doesn't? I can accept having mogstation glamours but there should be no reason why someone should have an advantage to get non-mogstation items. Honestly, minions are probably the best example of it. Why is it that someone who pays a bunch of money for extra retainers can have a much higher chance to get one before someone who doesn't ever does?
Not to mention how much money you need to spend to pentameld your gear. Uh. HELLO??? And don't tell me pentamelding your gear doesn't give an advantage. And I know people who easily spend millions attempting to do it.
Just my two gil. Keep in mind that just because you can achieve the same end without paying doesn't mean it's okay. Being able to do it faster by paying is unfair in a game where people pride themselves on being the first to do or have something. And you can say that it doesn't matter and those people have misguided values but at the end of the day, you don't get to determine what others value.