USPS has economy of scale on their side. You might find that if private agencies didn't have to compete with the USPS, they would be able to do the same quality work that the USPS does for even less.
Well, that has ALWAYS been the case hasn't it...?????
But why is it that in the last couple of years the USPS has gone from barely adequate at best, to my preferred shipper? UPS (for me) has had their speed and quality of service go down as their rates have gone WAY up, AND their economies of scale increase significantly.
Look, I'm not saying that private postal delivery can't compete, I'm just saying that I am happy with the USPS for the first time in the 25 years I have been shipping and receiving a lot of stuff, so they seem to be doing SOMETHING right. And as long as I remain convinced that they do the best job for me at the best price, I'm going to support them.