Ah, indeed teleports are involved. My ideal situation for a timed node system would be one where the nodes are distributed in such a way that the next spawn will always be in an adjacent zone, and at most times you have a choice of going one way or the other, resulting in the possibility of just wandering around Eorzea from zone to zone and enjoying the scenery while never having to work to a time table.
Because more people can easily gather the material they need, the demand for these materials on the market would decrease. In other words, there will be more people who choose to go the self-sufficient route because it isn't such a hassle to be so.