i just found this on amazon? not sure if it's what you're looking for though.
I bought mine here but it seems like they sold out:
https://www.amazon.com/Worlds-Porter-Robinson/dp/B00L5VZGY8
You can also find them here:
https://www.discogs.com/sell/release/5987590?ev=rb
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I'm sure there are more places if you look hard enough.
Worlds was on sale on amazon but it's currently temporarily out of stock. But if you order it now you'll get it at that price
Well you’re in luck! Plenty in stock and for cheap on Amazon 😊