Fair point and at first sight quite convincing! but these figures are based on maximum scenarios. According to easily accessible information average life expectancy is less than 81 years and inflation over 25 years 2.7 % (currently close to zero). If I use your preference for rounding up and we run the numbers based on the max possible 6000 pounds then for a couple we get to a figure I agree of a little over 100,000 canadian dollars, not hundreds of thousands.
Most people will not qualify for the maximum state pension (particularly if they were in an opted out company scheme), nor will everyone be married nor indeed will both partners live beyond average life expectancy. Using net present value the difference is of course even less significant in real terms. Your point that people might be a bit worse off in Canada than some other places is worth considering. But it is certainly not as big a factor as you make it sound.
Last edited by lederhosen; 1st Dec 2015 at 12:44.