I'm not very knowledgeable about Web3, but what you point out, I also find confusing. Why do I need to use ETH to buy an NFT -- my credit card should just do fine -- shouldn't it?

Clicking the "Connect My Wallet" button is kind of fun. But I feel like I've gained nothing over just using my credit card -- in fact my credit card provides me (as the consumer) tons more benefit than using ETH -- and don't get me started on gas fees!