Also, I noticed few people offering to sell their wallets. NEVER BUY A SECOND-HAND WALLET. It is very risky and you might end up losing all your coins. There have been few cases in the past where all of the coins of the users of second-hand wallets were STOLEN. Always buy it from a reliable source like Amazon or the wallet's own website.
Second hand wallets are also safe provided you know how to reset the 24 word phrase and make it like a new one. Even Amazon can't be trusted according to your logic since people selling are not authorized resellers and neither it is being shipped by people who have any affiiations with trezor. The most reliable would be buying from the website and if you are already given some 24 word phrase, just create a new one which will work exactly as a new one!