What's up with the price of morse keys?

[metrologist]

My grandfather passed and I rescued both his keys from certain burial.

The Bunnell J-36
http://vibroplexcollector.net/wp-content/uploads/2013/03/Bunnell-J-36-1724-300x225.jpg


and McElroy CP-500
http://w1tp.com/7740.gif

They both sit nicely displayed in an antique wood case behind glass in our dining room...

I also have a full fledged hobby machine shop and would like to collect ridiculous sums of money for making quality replica's of yesteryear