You can read the prologue and the first page of the first story right on amazon, it's part of the "look inside" feature.
Yes, but how many people remember/know of this, or even get to the Amazon page? I still say a link for a sample should be right up there with the main link on the game page, or in the official wiki page. Humans are lazy and lethargic creatures, unless you peak their interest right away.
Poll