Depends on how you want to play.
If you're planning long term, now is the time to make gil.
Once the markets become easier to navigate, prices will come down and your hard-earned gil will be more useful.
The lack of content is pretty obviously based on WoW's release model success.
WoW was pushed and released early to compete with ffxi that had been out for months in the US(And longer in Japan)
Much of its content was lacking, there were major bugs and the game was virtually released broken.
Well what happened when they fixed it, huh? $ $ $
If you look at all of the unused space, and listen to the npcs that allude to what is to come... You will get the bigger picture of their future release.
My bet is that the first major "Expansion" will be free. It will give SE a good image and will lock in many of their lost loyal customers.