Here is a rate sheet pamphlet that was in our mailbox today...

This sheet is referencing the 85c rate first, with the $1 for single stamp purchases last.
I am reminded of the times I visit some of our local grocery stores. Some give multiple prices depending on the quantity you buy. Others have discounted prices if you have a 'club card'. My wife gets mad at me when I am not observant of these savings.
Canada Post is doing the same thing. In fact, they have had a two-tiered parcel rate system in place for years. Whether it is
Canada Post or not, a consumer must be on their toes when buying things these days.