Over the past 20 years I have played many of the major MMO's. While FFXIV's market system is not the worst, it is not the best. One problem is the limited number of slot to sell limits competition. I think the best market system is what EQ2 uses - but it also has the issue of listings never expire, so junk can stay up for months. But as far as "the rich people" owning the market, not so sure - anyone can undercut them, and they are subject to the same slot limits as El Noobie is.