i can print multiple keys with paper and place it all the secure place for back up. i cant do that with hardware wallets.
Actually one of the Key advatages of trezor is that you can create multiple passphrases which essentially creates an entirely new wallet on the same device, with the pass phrase acting as an additional 25th seed word to the original 24 word seed generated on the device. Essentially then u would have different Keys for each wallet.