here in sweden I never had any such problems , every time I needed some help from a museum they had always done their best to help me .
me and my son had total access to the army museums varehouse for a full day , and the same friendly help from the historical museum when I took the photos of mörkö .
so I guess that if you have a good reason they will help you , but they must also do their part to protect the collections for future generations . so its understandable if they may be a little restrective .
largest problem for the museums is probably that they dont have money enough to show all their stuff at the same time , but thats an political issue . guess that there aint a museum in the world that wouldnt say yes if they would get the posibility to have 5-10 times more space .
even if there are ships at the bottom of the ocean they most often have an legal owner , most often a countries navy or an insurance company .
many items thats been "rescued" by private people will be destroyed anyway , a good example of that was the bronze cannons that was restored by that "expert" in the youtube video shown here a few weeks ago .
I have seen it sooooo many times when I have been buying black oak .
someone find a healthy and good piece of black oak thats 400 years old , then they take it home and destroy it by not drying it in a proper way .
it end up as some useless crap thats not even good enough to use as firewood .
so I understand when you say that you have mixed feelings about it , its the same for me