I really don't know. I think it's crazy capitalist competition, trying to get an edge over one's competitors with Added Features. Thing is, there is not a whole lot you can do with just toilet paper, so they get creative.

There was one commercial where they claimed they went across the country and interviewed a bunch of women about what they wanted from a toilet paper, and I was thinking, "Probably something that gets your ass clean." (I was also thinking, "Why did they feel the need to only interview women? Do men not use toilet paper? Yuck.")