I love the great pictures and information you post about vintage Hamiltons every few days.
I notice that you try to equate the original prices on these watches into today's dollars. My thought is that to equate the the price of the watch to amount of labor it takes to purchase one might be another appropriate measure of the current value. After all, an hour as measured by your Taylor in 1936 is hopefully the same in 2008.
I did a little quick, unscientific research on this subject. According to an article originally published on April 17, 1939 in Time magazine (it's avaliable at Time.com, but I don't know if we can publish the link here), the average U.S. worker's salary in 1937 was $890 per year. The $52.50 price of the Hamilton works out to be about 3 weeks salary for the average 1937 worker.
I looked at several sources for more recent 2006 salary data and round a range from about $36,000 to $48,000, depending on which source you believe. Splitting the difference at about $40,000, 3 weeks salary would be about $2,300.
This would seem reasonable, as $2,300 would buy you a high quality (non-gold case) watch today.
Which is exactly what Hamilton was in 1937. And is today.
Hope this helps,