The main advantages of bazaars over market wards are that the market wards are immobile (factor in your own travel time/expenses into all your purchases) and will list all competitors' prices at once, encouraging all the undercutting people are complaining about in other threads.

When 90% of the stuff being bazaared isn't realistically on the market, the bazaar platform itself becomes unviable, driving more people to the wards (specifically the Ul'dah wards), making the game experience worse for everyone.

Of course, I've been on these S-E forums to know that most of you are too dense to see past your own noses, so I'm more in favor of the scorched earth solution: a 1% bazaar listing fee.