I really hope that this thread does not descend into a complaint about words used to describe our reactions, as contemporary people, at the camps. The WWII Final Solution was a terrible thing. Words are poor things in expressing how bad the camps were.
I think that they are worth visiting:
1) We must never forget. The generation who lived through the camps is dying. Only those who were small children in camps are left. In 10 years, only a few will be left.
2) There were stories of great human success in camps. Some survived by doing good. We must not forget those either.
3) Not all camps were run by the Nazis. My relatives, who were auslander-Deutsch in Yugoslavia, spent time in some of the camps after the war. This was a program run the US Government ("Orderly and humane: The Expulsion of the Germans after the Second World War" R.M. Douglas). They were not in the camps as death camps, but simply because they had been expelled from the East, and were put in some of the camps after WWII using the housing there. 11,000,000-12,000,000 Germanic peoples from Hungary, Romania, Yugoslavia, Poland, Czechoslovakia, and Bulgaria were sent back to Germany and Austria.