That's a good point, it annoys me when companies don't take certain goods seriously. Honestly, hard drive returns, and things like Trezors should be binned off, as Amazon certainly doesn't verify that the contents haven't been tampered with. I was under the assumption that most retailers liquidate stock like this, rather than relisting it.
Dont buy cold storage from amazon! there have been rumours where amazon employees are being paid to leak info of customers who have purchased Ledger and Trezor devices to hackers who have bad intentions for your coins.
Always buy directly from the official website of your cold storage device
Where have you heard this? This is quite the significant claim, and I'm not even sure I can even consider it to be true for a moment. I'm not even sure, how this would benefit hackers, since all they would know is you own said device, and you might be a target for phishing attempts. Also, I'm fairly certain that the pay off for being caught leaking company information would just not be worth it, especially considering its apparently known that employees do this.