My Top 3 Most Expensive filaments (Over $900/Kg) 

•Koltron G1 from ‪@addnorth‬ costs $919/Kg
•BASF Ultrafuse 17-4PH from ‪@MatterHackers‬ costs $129/Kg
•HTN-CF25 from ‪@Essentium3D‬ costs $233/Kg
Pretty insane how much some of these exotic filaments can cost!