Not only are these eBook short stories available for sale on just about every eReader platform, there is also a code at the end of each novel which provides access to a free online version, essentially providing a number free ebooks for readers of the Terran Chronicles.
Some people find the convenience of having these short stories in their main ebook library is worth the low asking price. For others, all that is required is the code from one of the novels in order to gain access to a free online version of the associated short story.
Each novel of the Terran Chronicles Series has a specific code, which unlocks this free online content. For example, 'First Contact' unlocks free access to 'Johnny's Jaunt' while 'Discovery' unlocks free access to 'Pythos'.