Block 9 450x for instance are from the first bitcoin that was ever mined.
Oh and FYI, guys are making MILLIONS selling their rare sats getting like 5000x what they are worth as a single sat and prices are going up.
How would that even work?
If what makes a certain coin rare is being the reward of a certain block, the moment those coins move (are sent to the buyer's address) they stop being "rare"! If the seller sells the private key (without moving the coins), it would be scam because they will still own those coins and can move them at any time.