I respectfully disagree with you. My wife and I run a small business and ship all our orders by USPS. Their price is lower, their lost shipment rate is lower, their international shipping is WAY lower, and their damaged package rate is lower than either major parcel service, in our experience. The USPS employees we deal with are conscientious and friendly. Their customer support phone system is a Kafkaesque nightmare, but I haven't had a much better experience with the other services.
From my perspective, the USPS is a wonderful gift from our government to small businesses, and I would (and will, apparently) happily pay more for the service than I currently do.