PC: 4/-1 Vampiric String

Someone said upwards of 50k, but just wanted to confirm. How much is this worth? Thanks!

same here. I bought one for 10K, knowing it should be worth more than that

I'm not sure who told you that, but with the 5/-1 strings coming down to around 60k...
I believe that would make the 4/-1 strings around 25-30k at most.

Although people spending that much would rather spend more and get a perfect 5/-1 string instead so in reality, you may have to sell for less than that price.