So, in conclusion, I am looking for a constructive conversation, not a one sided view on the matter. I understand you have your view and opinions, but they aren't the gospel, and I hope you see that...
Your previous reply had been there sometime and nobody came along to agree with you.
I fail to see how any of that is relevant to the product in question. Tell me why someone is more likely to be scammed buying one of these than they are a Casascius coin on eBay? These aren't even collectable so there isn't even a reason someone would attempt to buy one of those other than from physical outlet. Your example of someone selling the card to 3 people just doesn't make any sense.
On that note, the flaw with these "Bank notes" is that they are still handled by human beings, so there will always be the human element to take into account
Any wallet is handled by humans. Scams can happen in any form. Describing that as a flaw is ludicrous. The fact that they can be physically checked makes them more not less secure.
How is it not relevant to the topic in question? I am not saying that one is more prone to be scammed by buying one of these. What I'm saying is that the hardwallet is like a giftcard that has been loaded with 'money' already and someone can decide that they don't want to use it anymore, and therefor sell it.
Any wallet is handled by humans. Scams can happen in any form. Describing that as a flaw is ludicrous. The fact that they can be physically checked makes them more not less secure.
The online wallets that are used in Crypotcurrency are secure only because it is keyed to you and only you. No-one else can access it without your private key. Also, with cold wallets, like the Ledger Nano for example, there are various conditions that one has to meet before accessing anything on the wallet. That being said, if one decided to sell their Ledger Nano as second hand, my previous argument would then come into effect. What would stop the person selling the Ledger Nano from accessing the wallet after selling it to you, as the private key on that cannot be changed after initiation? This would further emphasize my point of a lack of education, as anyone who is sufficiently educated in using hardwallets, would never buy a second-hand wallet anyway.
There are various website to facilitate the buying and selling of unwanted gift cards already, so what's stopping those websites from adding these "hardwallets" to their database and facilitating the buying and selling of these? All one has to do is register the card on the website and post the add. Most of the time, payment is needed before delivery, so, as I've said before, one can collect payment from multiple people interested in buying the 'hardwallet' and send copied versions to the buyers, which are then only verified (or, in this case, not verified) upon delivery. People are willing to buy just about anything online these days in order to save the time and the effort of having to leave their homes.