This has been an interesting & fascinating discussion. I applaud all posters for sharing their thoughts & opinions on this one.
While I'm guessing that most copyright law is of a "One Size Fits All" nature, it would seem that there are different situations that might apply. In the case of a book that is out of print, is it "right" the owner of that book not reprint it thus making its value greater? I don't know. But I'm much less concerned about making (illegal) copies of something I can't buy any more.
In the case of Greg P's comments immediately preceding mine... as the creator of a piece, you also have the right to duplicate that yourself. But if I buy one then reproduce & sell it myself, then that deprives you from profiting from your work. You deserve protection from that. And, in your comments, you said that you would not expect to see... "any part or portion of that painting used in such a way that an impression is given that it is the work of someone else." If everyone abided by those expectations, there wouldn't be an issue. Just the same as if everyone drove safely and were considerate of others, we wouldn't need traffic laws. I think your comments point out the difference between the perfect and the real world.
Again, an interesting discussion... : )
dlm