Imagine you had a racehorse that had a chance to win the Kentucky Derby, so you decided for the six months before the race to cut it's daily food intake in half with the idea that a leaner horse would be even faster. Do you think the horse would win? It's kinda that way with the USPS (and government in general). The price we pay for having the lowest taxes compared to other industrialized countries is we are among the worst in services, health care, transportation, etc.
p.s. I'd second William1's comments, I was an RCA off-and-on over the course of a year.