I have few USB flash drives which have 'died'. Is there any estimation how long those current hardware wallets on the market, for example trezor or ledger nano, will last?
We cant say and no one knows on how far or long those physical wallets would last but same as mentioned above it doesnt really matter at all as long you do have the seed and the keys which are important if theres something happen to those bitcoin stored on those wallet and buying a wallet isnt too expensive considering on the amount you are storing for sure 