You think that until you start missing important official correspondences, or find your credit rating is fucked up because your health insurance kicked some part of a doctor visit back to you and you never saw the bill.
We are far more dependent on the USPS than most nerds realize.
I got screwed by this when I was traveling around Iraq and Afghanistan for a few years; I missed a $1.50 finance charge for about 110 days which went to collections, froze the account, killed auto billing for my health insurance and other stuff...
Switched to using earth class mail which scans all my incoming postal mail, deposits checks, etc which has been a huge improvement. (and was able to get all the consequences of missing the last $1.50 of a payment I hadn't seen in the mail reversed, after a lot of letters and phone calls).
Most postal mail is spam, mixed with a few important messages.
