A) even if the 131,000 printed survived (which they didn't) That low number is little over 1% of a full run of 10,000,000
B) YES think of the context back then: $50 is a lot of money during the depression, the worst outbreak of polio, and tensions mounting in Europe (political instability)
C) not many survived in collectible condition during a 2 year life span for the first Bank of Canada issue printed in bilingually separate runs
D) 1935 is one of the most popular series for collectors to collect
E) Some collectors don't let a high denomition (like a $50) deter them- they just collect what's scarce