One of the drawbacks of going with a print-on-demand publisher is that you can't sell your novels at a competitive rate. A trade paperback from Tor goes for $8.95 or $12.95. But your novel from just about any POD outfit will start at $15.95. That's just the cost of production.
That's about five dollars more than the average bookstore browser is willing to shell out for an unknown author.
But then, I see things like this.