Thats defenitely true... but then you can also say this to the people that like to collect art or buy jewellery, buy oldtimers just to have fun driving them and all that stuff that makes live fun but is esenntially not needed.
I personally did not and do not plan to buy cartel coins because for me it is not worth the money... but i totally accept it if someone decides to subsidize the game by buying cc
No it isnt. Things you mention have real value. Cartel Coins do not.