I seem to recall DQV was also criticized at the time for it's visuals. I'm not sure if that impacted sales ior not but it was described as looking like a more colorful Famicom game and was dissapointing when compared to Square's efforts releasing then (Romancing SaGa, FFV, Secret of Mana).It looks like it was released somewhat early in the system's lifecycle. It's not a huge discrepancy so I imagine that might have something to do with it given the number of used copies that should be available as later buyers came in.