Because wrecks are hands off reporting them doesn't quite equate to glory. Not conductive to much location sharing.
Was the resting place of the F.J.King really never know until now?
A hull exposed ashore gets measured and fussed about until recovered.
Human burials being exposed ; a bit quieter.
Still waiting on the Griffons location despite varied claims of it being located through time. Confirmation is another matter.
It's tamed down. The old divers are gone.
The young are older. Even old now.
Sure old wrecks can be dove for the sake of diving.
Recoveries though ; a different matter. Don't touch and you are half safe .
Modern salvage and scrounging in rivers for varied modern stuff might cover some expenses. Machines through the ice need removed by law and there's at least one airboat salvaging them for their owners.
The recovery of old growth long sunk stray logs from Michigan's logging era took good prices to instrument makers wanting not only the tight gran bout long soaked character as well.
Even then such recoveries were/are not exactly a free for all...
Nearest dives encounter what others before did. Calling the press isn't usually the first thing done ashore after. Though eventually someone is likely to report a discovery as if no one else knew where it was all this time.
The Great Lakes were once America's busiest highways. Unfortunately, the waters were as dangerous as they were busy, and often unpredictable storms and the resulting waves took down ships. That shipwreck history is strikingly preserved within a dozen official shipwreck sanctuaries in Michigan.
www.michigan.org