Wow that is just a breath taking plant. I really don't think people in the CP world don't know what and expensive plant is. I know people in that are into orchids that will shell out $150 to $200 and don't even think it is expensive until it hits about $1000. That being said any nice large Nepenthes (other then the mass produced hybrids) will fetch close to $100 on ebay.
Yon have to consider you self lucky to have such a rare beautiful plant.