probably exaggerated values on the coins and jewels, because of their age and treasure value.
some people think a coin from the 1715 Treasure Fleet is worth more then
the same exact type of coin found in a collectors album
and of course many fall for it, till it's time to sell it to a gold buyer and he throws it on a scale
You all can go ahead and cross that lead off your list.....I already found those chests....in my dreams. Seriously, I bet there are lots of finds like this still out there, they just haven't found me yet.