nachonaco_Grippers said:
It's listed on Amazon as well....
People buy very differently from online sites than they do from a bookstore. They usually have a specific title in mind, and don't often browse. Also, there's a huge number of titles, the chances of a reader stumbling across the title of a new author are really low. The chances of them buying the book, even lower.
That's why so many POD books have no Amazon ranking. No copy of the book has been sold. Many more have an Amazon ranking in the millions, meaning one person bought the book (that's likely to be someone they knew). Even when they have an Amazon ranking better than that, their sales aren't great.
In a bookshop, people browse and pick up new authors.
This is why, even though POD books are available from most online retailers, their sales are tiny.
I think it comes down to what your goals are in getting your work published. There is no real substitute for commercial publishing houses, and they take on new authors all the time.
Whatever you choose to do, good luck
.