You brought up an interesting point, but what you are not getting is that the expectation of a decline over the course of 10 years. You know that the math experts are at work with the increases based on many different factors. Stamps are going to increase because companies and advertising companies are going to continue to use this as an avenue to reach new customers, and people still have to mail larger packages. The people taking the bus may decline over time the s-curve will meet the expectations of cost over time. The predictions is that the city and roads will become more congested making more people take the bus.
Gas prices are ridiculous which has to affect all transportation.
We may pay our bills online but businesses that ship through the Post Office are saving quite a bit with their flat rate boxes. For the past couple years we haven`t had to pay for a single box because the Post Office gives them to you. Guess that`s why they might charge us more for those stamps now!
There will always be people that ride buses and trains. Letters, magazines, ads etc can only be sent by mail. And all my packages will only ship that way too! So, that`s why they can raise prices, because we`ll have to pay them anyway, unless we`re willing to find new ways of doing these things.
We already subsidize public transportation at several levels thru taxes, national, state, local as well as user fees (fares, tolls).
A limited or monopolistic market allows for this type of behavior, economics 101. : )
Welcome to the American "Free Enterprise System".
OK, I thought I was answering the original question.