Some people still may feel they are better off selling through this system, which feels to some people like it gives them more control over their price and ability to sell.
I hate that reasoning, and I don't know why SE chose to use it when designing the system...
Prices should be determined by supply and demand, not arbitrarily set because some douche decides he wants to charge 5x the going rate.
-Using the FFXI AH, his wares would never sell, unless the supply dried up enough to warrant the demand being strong enough that people would be willing to pay that much.
-Using the FFXIV system, wrestling with the terrible market system is so time consuming that people will often buy the first item they need rather than search for a fair price. I'm sorry but that's a terrible case of design imo, it punishes common sense and is nowhere near conducive to gaming, nor a healthy in game economy. Yes the search made it better, but it's still not even close to where it should be.
It would only get far worse as more items are added too, the very limited number of items now, as well as YG's bazaar service(thx god) at least partially allows undercutting to play it's role.
I was a crafter in FFXI, and I managed to make a good income with it, and I'll still be the first to tell you, that the massive amount of undercutting(yes, it happened to me too) was A GOOD THING! It forced you to leave flooded markets and craft/sell things that there was actual a demand or shortage of. It encouraged crafters to be creative, or to get out there and do things like farm or socialize to cut their synth costs, so they could keep up with the going prices.
In stark contrast to that, the market wards system encourages people to be extremely lazy and unreasonable, making whatever they feel like, and selling it for absurd markups. ***** those people, they are not real crafters, they're just sharks trying to cash in. Crafters should be encouraged and required to be responsive to the actual player driven market.
And lastly, an AH does still let people ask whatever price they want. If you ask too much, your things just won't sell is all, which is exactly how things should be. Yes, common junky NQ items will no longer be profitable, but the market will adjust itself so that if you follow through with crafting and make more than just NQ garbage items, it will still be good money statistically speaking, you just might not get rich off your first synth. If you don't like it, don't craft.(which is why I think crafters should be able to make repair kits, so crafting isn't so required by literally everyone... Let the crafters craft, let the other people farm and stop eating skill up mats)
Of course that's just my personal long winded opinion... I'm sure a lot of lazy uncreative crafters would strongly disagree with me, because they like making loads of gil off of NQ items that are low risk and low cost to make. Of course, right now, gil is next to worthless anyway, so I guess it doesn't matter much until later on when they start changing things and adding more stuff.
As it is, I rarely ever step foot in the wards anymore. I farm mats, go through other crafters, ask people in my linkshell, and if need be, shout. The few times I do a quick search for something in the wards, it's never there, and I never actually go into the wards unless I have a marked retainer to check. I also never sell in the wards. They can just get deleted for all I care, retainers are and would still be more than useful enough just for the purpose of storage.