What do you think of Hitler's artwork being purchased for the only reason to be defaced and altered?

I think it's dumb -- art is art, and it should be appreciated as such, no matter what the political views of the artist are/were. If people want to factor Hitler's politics and reputation into his art, then it would make sense that they should be able to use his art as a learning tool. Those who do not learn history are doomed to repeat it..... and art is a (pretty significant) part of history.