I am concerned about the information you have provided above and the confusion it may cause within the resell rights industry.

Quoting your text above "PLR (Private Label Rights) products with Master Resell Rights are nothing short of another goldmine." is where the confusion begins.

Master resell rights are vastly different from private label rights products.

Master resell rights allow you to turn around and resell the product as is and keep the profits. These rights do not allow you to edit the product in any way, shape, or form.

Private label rights allow you to edit the entire product in addition to claiming authorship. You can add, remove, and edit the content. By doing so you are well on your way to creating a product that is unique to you and your business rather then reselling a master resell rights product that will surely saturate the market if it has not been already.