The blame is somewhat misguided: what's blame to here is cost-cutting, not printing on demand. If you're willing to pay, you can get POD books that, certainly to the untrained enough, are indistinguishable from "real" books.
For example, Lulu's hardcover books with linen wrap, dust jacket, "premium" B&W printing with 60# uncoated cream look pretty darn good: https://www.lulu.com/pricing