PSA population report shows just over 153,000 T-206s (all backs) graded (by PSA).
and just under 14,000 for 1914 and 1915 CJs combined.
I know that doesn't include raw cards and other grading companies, but it should be a pretty good snapshot of the difference in the number of cards that are out there.
Rarity does not always match proportionally to interest/desirability. It is about what people like.
I am pretty surprised that card collecting has been so resilient during the state of our economy over the last 5 years, but that is probably OT!
Thought I would follow Leon's lead and add a little color!
