In terms of items and possessions and resources and materials, is there anything that...
... the world don't have? Or don't have an unlimited supply of?
And, besides the question of if you have the money and means to afford it, is there anything one cannot legitimately obtain, buy, possess etc anymore?
Old cars? Souvenirs? Old fashioned telephones? Various rare items? Films and music? Toys? Etc. Or does the world, on planet Earth and created by human beings, have EVERYTHING today?
Food and other items, various unique gadgets etc.
Cheers.