There are so few daggers and no one's main weapon is a dagger. I just bought Cecil the dancing dagger and it actually lowered his attack (he had a mithril/silver sword before that). Sure some magic users like Rydia and Palom can use them, but whats the point if they are going to be in the back row? And for those who aren't magic users and can use them, there is almost always a more powerful weapon that can be equipped at the time. A total waste if you ask me.