Fair enough. It's got a monopoly on low priority, low weight, high volume. But given the exceedingly low margins (and extreme start up costs), it's real questionable if a firm would even bother with that.
I'm not so sure about that. First of all, that firm operated back in the late 1800s. Comparing that to today's operation is apples and oranges. A great deal of the cost savings that allowed the USPS to generate actual profits is from mass scale. And FedEx/UPS are geared towards high weight, generally low volume per customer, high priority. Switching to a low priority, high volume, low weight with hundreds of millions of delivery points every day (rather than just perhaps a million at most) is an entirely different animal.Notice the link to Anarcho-Capitalist hero Lysander Spooner's American Letter Mail Company in my previous post. He was able to provide postal service better and cheaper than the government, but Uncle Sam initiated aggression against him, as they would against UPS / FedEx if they ever start to offer delivery of standard (non-urgent) mail, or go below a certain price, etc.