If you brought back moonrocks (from the moon, lol) and you put them on display here on earth, people would go have a look at the rocks and say "ooh....ahhh" until the novelty wore off. Then people would be none the wiser about moonrocks and just plain old rocks from your backyard. Nobody would bother about going to see these moonrocks (from the moon, lol again). The point is that half of the mystique surrounding the artifacts is the location in which they are found. If you remove the artifact, you lose the mystique. The video footage regarding these artifacts inspire a greater impact on the audiences sences than an preserved shoe behind the pain of glass that looks like my grandads shoe at home. Thus these artifacts become spoilt. They loose their identity. And once they loose their identity they loose their ability to tell the story. The story of 1500 souls still waiting to reach distant shores...