The old rule of supply and demand is applicable here. If Ragnaroks are in high demand... Of course the price will be higher. As long as people are willing to pay a certain price, they obviously think it's worth it. Personally, I think Joe has a point, but who am I to complain if someone wants to give me a lot of cash for some guns. And there are several factions that have really good lvl 9 guns, which makes the need for codies a bit redundant.
And Yuffie... If you have a char near Sigma 13, I could give you 2 Onyx and 2 Jade. They match each other in speed and refire rate. Drop me a PM if you want them. No charge!
