Author: Craig Reece
The major difference between ghost writing a custom project for a client, versus creating and selling private label rights products (PLR), is what you can charge.
You can charge a lot more for a custom ebook for one client, because you are a) creating custom content specifically requested by the client, b) you are handing over all rights to the client and thus losing the ability to use your own writing, and c) you cannot sell the rights to anyone else and thus it's a one time sale.
With PLR products, you keep the rights and also sell off the rights to whomever you choose. Typically one will only sell limited copies so that the products' value remains high. As more and more copies are sold, people see the products' value diminish. You can't get as much money for the same book offered through PLR, but you can make more money because you can sell several copies.
In the beginning of your career, you might not find it very profitable to take on custom work. This is because if you're just starting out, you won't be established nor able to charge premium prices. In order to create a customer base and gain testimonials, PLR is probably the best way to go.