USPS shipping prices ?

Went to the Post Office to ship a set of 4 pound cables with $200 insurance plus tracking to California via priority mail. Clerk tells me the cost is $14 and change. When I balked at the price, the clerk told me that it depends on the zone it goes to. I said, sounds like you guys are getting more expensive than Ups and Fedex. Went to Fedex and shipped the same package with tracking and insurance for $7.05. It used to be cheaper to ship via USPS. Unfortunately, this is no longer seems to be the case.