Are Pratchett-style chapterless novels still viable?
I started reading a lot of Terry Pratchett recently and one of my many favorite things about his stories is how he uses page breaks instead of chapters to break up the story. When reading his books I feel I can set it down at almost any point and retain the ability to seamlessly pick it back up later. With chapters (especially long ones), I invariably feel compelled to finish the chapter before taking a break, which can sometimes result in more hesitancy to pick up the book in the first place if I only have a short time to read (before starting my shift, for example).
How viable is this chapterless strategy these days? Terry Pratchett is the first author I've read who does this, which tells me it's really not very common. Will publishers insist on chapters? Are audiences prone to ignore a book like this in this day and age? What's the most compelling reason you can think of to avoid a chapterless structure?