If you are dropshipping there will be always someone else who is selling same product. Doesnt matter if he is using this plugin or he is making the product. It is quite hard to come up with a niche that few ppl are targeting worldwide. BUT make good KW research, make good content, make your website look even more professional, make a blog with quality articles in it and install social rabbit (for example), make some high quality web2.0. Today saturation is zero, google and every customer is looking for high quality. Even in the most saturated niche there are still longtail keywords that can bring few thousand unique visitors per month from organic search. With quality content from mouth to mouth you will soon get even more. That is waht you should aim for... niche is important but even if it is too saturated just target long tail keyword with super low competition. The most important thing today is the content. With content you can build trust and comunity, The cheap prices you can come out on your own but after that the only thing that a customer is looking for is trust. I am super noob in drop shipping but Hell I am in the marketing for like 10 years already and know some things.