There’s still a market for physical books, if you get creative. Scott Sigler’s self-publishing strategy:

We set a goal to sell 600 pre-orders of a signed, numbered, limited-edition $34.95 hardcover, which would generate a $21,000 budget for cover art, interior layout and hard cover print run of 3,000 copies. If I could sell those 600 books, I would have no out-of-pocket overhead. Everything beyond the 600 copies? Step 5: profit.

He ended up pre-selling over 1000 hardcovers.