How much good quality video can you fit in to, say, 1gb? 0.5-3 hours, depending on quality?
Music? 10-20 hours?
And what about books? Well, you can fit hundreds of them in to a gigabyte. That's enough reading for a decade, at least.
I know bandwidth isn't that big of a problem these days, as it was before, but take what happened for me, for example:
I heard about this interesting science fiction book one day. It didn't sound interesting enough for me to rush to amazon.co.uk to order it, though, so out of a whim I decided to do a search on the pirate bay, just for fun. What I found was this torrent that was filled with science fiction books, a couple of gigabytes in size. It contained basically every single notable book by every single notable science fiction author.
The fact that downloading a whole genre of books is so trivial that it can be done in a half-an-hour these days makes me glad I'm not a science fiction author