Regarding Elon's NFT, I've already given an opinion, as for DEX, the number of services that will be offered by the platform is worth waiting for. I found the supply reasonable, with great chances of high appreciation.
Such a collection is a good way to attract attention to the DEX and its products.
As I understand part of NFT will be distributed during the airdrop.
It is a good way of promotion and to attract attention to the DEX and other products on the DEX.
Now there are many tools to attract attention to the project. The competition is very big and it is very important to promote the project to attract attention to it.
Now there is a big demand in promotion and price for advertisment is very high.
But promotion must be effective but not only expensive.