I don't think it's right to download entire websites or part thereof ... for whatever reason (unless you have permission). Most websites are copyrighted and are illegal. Of course, we can each do what we want to do. I'm not sure if there's a clear law on this but the action borders the line of theft. It is one thing to link to a feature on a website or even to print an article for reference but to download every single item on a website is just wrong.
My 2 cents.