For high-value transfers, I view the minor transaction fee as an essential insurance policy; sacrificing a small amount is a reasonable price to pay to avoid the permanent loss of principal. While opinions may vary, I prioritize security over efficiency for large sums

How would you do that if you're sending to cold storage? "Checking the wallet" doesn't add anything if there's an on-chain confirmation.
Hi, you're right that on-chain confirmation is the final word on where the coins have landed. However, 'checking the wallet' isn't about verifying the network it’s about verifying your access
In high-value transfers, the primary risk isn't that the transaction fails to confirm; it’s that it confirms to a destination you cannot actually control. 'Checking the wallet' after a test transaction is the only way to prove three critical things that the blockchain cannot: Ownership verification, backup integrity, human error/malware
on-chain confirmation proves the coins arrived at the address. 'Checking the wallet' proves that you are the one who actually holds the keys to that address. Without the latter, you’re just trusting that your initial setup was perfect which is a major risk when dealing with large sums.