The reason it cost so much was because it's a specialist weapon, by the way. it deals absolutely unreasonable levels of damage on the condition that you close the distance enough to actually stab someone with it. The only people that experiment with builds like that are the folks with really high amounts of free time, money, and similar. It's what solidified the "nobody uses" it thing.

Of course, this is never actually stated, but I've seen a couple things like it in existing MMOs.