No I'm not saying it is the same thing as a hardware wallet or it can replace it, I'm just saying the pro version is safe because Ballet will never know what passphrase you have chosen to generate your BIP38 key. But I agree this version is very expensive, even if you get 3 paper wallets made of steel for the price. Unfortunately hardware wallets are fragile and break down easily, it means you need to use a paper along with them in order to back up your seed when you are using them. But paper is fragile too. That's why some people could prefer a paper wallet in steel with an encrypted key to hold their Bitcoins. It allows them to access their funds at any time without using a device they have to trust, and without dealing with any complex derivation path or address format.