Based on the value differences between unused and used, I consider F-VF+ used examples of these stamps to be bargains.
With a population of about 31 million, Canada is one of the world's wealthiest countries, and is one of the world's top ten trading nations. GDP growth has averaged 2.2% over the past five years, which takes into account the 0% growth of 2009 due to the global financial crisis. Canada's population is expected to age significantly over the next decades. Canadians over 60 are projected to increase from 16.7% of the population in 2000 to 27.9% in 2025, and 30.5% in 2050. Consequently, in the future, many more Canadians will be spending time working on their stamp collections on cold winter days.
Those interested in learning about investing in stamps should read the Guide to Philatelic Investing ($5), available on Kindle and easily accessible from any computer.