I agree with you. I am a heavy user of USPS (ebay seller) and their service is 10 times better than UPS or FedEx.
You are right. One thing USPS does that fed-ex and all the others don't, is go EVERYWHERE.
When I sell something on ebay, I ship USPS, I don't care how slow it is, just how cheap it is, and that it can get there.
Insurance is cheap if it dissapears.