The supermarkets in my affluent county thirty miles north of Atlanta sell tradecraft sized novels of Stephen King, Dean Koontz, and other top of the line authors were on sale for $12. No way my tradecraft sized novel at $13.50 could compete with Stephen King and Dean Koontz.
Adjacent to the tradecraft size novels were intermediate size paperbacks (5" x 8") on sale for $7.50. ( Listed for $10 on Amazon). The vast majority of the intermediate sized novels were vampire or paranormal novels by established authors, and usually part of a series. Most of these novels are targeted for "teenage" readers. But there were at least six authors of adult targeted vampire or paranormal novels. At $7.50, these novels are selling for less than the cost of my print on demand paperback. This is a stake in the heart, so to speak, for paperback sales of unknown and relatively unknown authors, and of course the small presses that publish them.
The digital world remains the last refuge for "us little ones." On Amazon Kindle, Stephen King novels are selling for $8.99 or $9.99, depending on when they were published. The well-known, but not famous, authors' novels are selling for $5.99 and $6.99. Less than famous folks can sell novels for $.99 to $2.99 and be competitive. Hopefully, most readers don't only read Stephen King, Dean Koontz and other famous authors