not a good sign

The local Morning Call reported the other day that owing to a decline in postal volumes the once-familiar blue mailbox is fast disappearing here in the Lehigh Valley. Since 2004 the number of mailboxes in Allentown declined from 300 to 63; in Bethlehem, the number went from 150 to 83. Living in the country, I don't much use mailboxes except at the post office. But I always look for them wherever I go, here or abroad. Are they really going the way of the pay phone?