Why is Locustlure so expensive?

[Wakanda]

I remember it as a cheap twink item in 2000. No where near being the best item or anything like that. I can easily afford an Exquisite Velium Spear and Scimitar of the Emerald Dawn, but I want the Locustlure purely for "meh nostalgia" (I also farmed ravenscale which took forever). Trying to re-create my childhood character basically.

But noticing that Locustlure is kind of expensive for what it is? I've literally never seen a high level Rogue using it for Walking Sleep, and Enchanters have easy access to slow, so my only assumption is that the high price is because Necros use it for slow or something? Or do yall know something I dont?