From the wikipedia article I gather that the only Giffen goods that were actually shown to exist are the Veblen goods and thus disqualify as Giffen goods. It seems to me that Giffen goods are a theoretical thing that has never been actually shown in real world (as the article states, all of the proposed examples were discarded).
The case of website cost going down and demand going up seems pretty standard.
The case of website cost going down and demand going up seems pretty standard.