Basically, Square's taken out one of the best part about any RPG, and that's getting the best weapons/armor. It's now become games to get the weapons, though in FFX, the "best weapon" is a relative term, because it may not be your prefered weapon.
But my main problem is that, with the exception of 9, they've lost armor almost completely. 7 was close, but still you only had two things. But that was okay, since Materia more than made up for it. But in 8 you had no armor, but the GFs and magic. 9 was good, as I said. And then 10 screwed up again! This was the worst, though, cause the best armor and the worst amor could be practically the same, since you might spend more of your slots on HP, MP, and statuses, so armor wouldn't factor in at all.
I just hope they brink back the multiple armor/shields/accessory in FFXII...