So I have a proposal. There are REAL languages out there that are just as obscure and interesting. And they are dying because all the native speakers are dying out and all the young folk are learning the "major" languages so they can communicate with the outside world. Why not adopt one of those languages? I found Scandinavia has a LOT of these languages dying out, and they are peanuts compared to the rest of Europe, Africa, Asia, or the Americas. Instead of Klingon, why not pick up Cornish or Crimean Gothic? Pick up some choice phrases in Navajo or chat in Northern Lappish? Insult someone in Amapá Creole, and they reply rude and saucy in Inupiatun?
The possibilities are endless, and you help rescue an old language.