Two books by
Gene Wolfe reduced to $3.99 each at Amazon US and Kobo US. Still not the greatest bargains of all time, but I don't know if they ever get any cheaper.
Nightside the Long Sun, The First Volume of the "Book of the Long Sun,"
https://www.amazon.com/Nightside-Lon...dp/B008YHUNTY/
https://www.kobo.com/us/en/ebook/nightside-the-long-sun
and
On Blue's Waters, The First Volume of "The Book of the Short Sun."
https://www.amazon.com/Blues-Waters-...dp/B003J5UI4G/
https://www.kobo.com/us/en/ebook/on-blue-s-waters
I read these series a long time ago in paperback, and, unlike with other works by Gene Wolfe, had to force myself not to abandon both. I'm wondering if I should give them another try.