well that was an entertaining read.

From a crafter's perspective : did the research, found the latest niche and its profitable till someone else comes in and undercut's or comes in with a massive stack of the same item offered and regulates the avg price. Generally you wont see them resale new NPC items, less the new item now sells for more faster then what they are already selling .. not effective for them to oversell and make a profit of 20k per stack per day when a end game item would net more...or they need to the slot to sell less quantity faster.

From a new guy perspective : great way to make an extra buck, low risk and decent return without having to constantly monitor when you have someone help you out in novice network on what products currently move. also a decent way to re-invest and get mats faster to level crafting. If nothing else have the gil you need for repairs/teleports and NPC gear upgrades while leveling.