I don't understand why it needs to be 'or.' SeedSigner is strictly a signer. It doesn't store a seed in a secure element. I have a use case for both. I use a Coldcard and SeedSigner.

SeedSigner, in my opinion, is great for multisig and absolute zero cold storage. You can use it for everyday use, but I don't like to keep a single seed laying around with too much value attached.

Basically, I find the SE more convenient for #Bitcoin I plan to touch a lot more often. Once that gets large enough, I may consider moving it to a key I generate using Entropia and use the SeedSigner if I ever need to quickly use a key without loading it into a SE.

The point is that there are uses for both. They aren't really the same.