Ugh, why can't people look at the materia slots in the bazaar?!

[Espon]

I remember seeing rubber for sale on the market at 50gil a piece whilst an NPC vendor right next to the market board sells them for 13gil... as long as there are suckers to buy stuff like that people will continue to try their luck. They aren't so much an issue though as it's as much the buyer's fault for not checking.

I'll sometimes buy overpriced items that I know are sold from a vendor because I'm too lazy to go find who has it or to go teleport to another city.