maybe it people dont go stupid with the market prices less people will feel they need to buy gil

XI had this problem, people would drive up prices on everything, then blame the "gil sellers". Players in forums demanding all jobs used only certain equips, which sold for INSANE prices. when faced with the prospect of farming for MONTHS for items you're told you cant level without or paying some shady website $20 people went for the website. (or like me, simply quit playing which is a lose for SE)

Undercut the market prices, dont let them control it and STOP TELLING PEOPLE THEY HAVE TO HAVE THE MOST EXPENSIVE STUFF SIMPLY TO LEVEL.