From the science fiction landing page in the Amazon Kindle store (this was right at the top):
I’m always so glad when I can spend $8.00 rather than $0.75.
Whoever at Amazon approved that section is an idiot. Plus at least one of those books is available from Feedbooks for free (always check for a free version before you buy a classic).
Sometimes I wonder why more publishers aren’t gunning to get their author’s books onto the Kindle. And sometimes I don’t.