As has been mentioned, there was a long standing stigma among the Japanese players that NA players were less experienced because we got the game a year later.
See I think this was a big misconception, or at least my friends and I felt it was. I believe that it wasn't that they believed that we had less experience per-se, but the way that NA players approached each situation wasn't very tactful. An example:
I have a blm friend that I play with and he had a lot of JP friends even though he himself wasn't Japanese. The motto that was taught to him from his JP friends was that "You will never find a 'good' JP blm" the reasoning for this was that they all understood that group harmony was the best and most efficient way to play. Upsetting the balance by pulling BIG numbers meant that your overall party time may be reduced hence why they were very efficient at playing the hate line, and very smart about when to push that line and when to stay their hand.
We NA players seem a little different than that in the sense that our mentality is simply, kill it quicker to gain more exp quicker so we nuke bigger, but we forget to see that in killing it quicker we have the high risk of killing ourselves and reducing the exp gained over all.
I believe THIS is the reason why they regarded us as "less experienced" and not necessarily just because we hopped on board 1 year later.
The bottom line is simple. There is a huge disadvantage to any group that starts later than another group. It's not just a matter of starting late, it's because of how you'll find yourself exploited by the masses.
Normally any group that starts out earlier would have an advantage, but it depends on the person and the situation. If we're looking for ways in which we are victims then we will always be victims, and our mentality will always reflect. We must not think this way because if we think this way we will always be at the mercy of someone else, instead of taking responsibility and forging our own path. How I've always thought about it was "I'm gonna shove this in your face when I'm better than you, and I started out later" lol but that's just me.
From everything that I've read on these forums and others is that we are assuming that SE is going to be using the exact same model that is used in FFXI for a lot of this game. This isn't FFXI-2, it is FFXIV, and for all we know the models for this game could have been based off of FFXI but that is as far as it goes, we cannot assume that it is the exact same thing.
For the purchasing and selling of products. I've dug around for information that has popped up regarding buying and selling and the only thing that I could find was that SE was getting rid of the AH system and each person now has a container in which to sell things, in addition sellers now have to pay the tax. Other than that I have yet to see anything regarding actually setting prices on products, this we will not see till at least beta.
For setting the standard for jobs and what not. From what I've seen, the game makes it harder for anyone to set a standard because each player may not have the same traits. I may find more use for having parry than shield bash, or having counterattack versus evasion; it would depend on playstyle. From one of the interviews one of the developers said that:
"If you wanted to play a job that was like FFXI, you would have to find all the traits that reflected that job."
This leads me to believe that there is no more set standard that a Gladiator must have tanking abilities. Mages might special veins that they follow, so not every mage will be an elemental mage; they may not all have poison anymore.
Again I haven't seen enough information out there, legit and non-legit, that would give me enough information to make a solid claim that FFXIV uses the exact same models, meaning buying/selling, jobs, crafts etc, as FFXI.