I want to sell an Amazon product. In fact, I have a total of three digital-download products I am planning to put on the Amazon marketplace. NOT eBooks, but digital products. One product would be priced at $4.99, the other would be priced at $9.98, and the last one would be priced at $49.99. I know with such minimal info, it's probably difficult to make an exact judgement, but I am just hoping to get some general feedback from people who have experience with selling Amazon products. Is it worth it to commit to this? My biggest confusion is the promotion of the product. Theoretically, you'd think since I have 3 different products listed, one of them would be bound to sell themselves. They are in a unique niche. Any info is helpful here. Thanks in advance.