This is a very polished and well made plugin – everything operates exactly as it should, easy to configure with a good amount of customization options. The resulting output looks good and should fit in well with any theme you choose to use – having the option to tweak it with some custom CSS is a bonus if something is not displaying quite right for you. Including Amazon links in your posts can be quite lucrative, I personally have earned a lot of money from the Associates program – if you have a website or blog which talks about products quite often, using this plugin can add an extra later of monetization to your site. I found that over Christmas and Black friday sales go through the roof so by using this plugin you should be able to make some extra money which in turn will pay for the plugin cost. I found the plugin developer friendly and helpful in the course of reviewing this plugin so you will be in good hands if you ever require any support.
You could try advertising more, for example, by putting up signs around the neighborhood, posting about it on social media, or having people you know spread the word. You could also try doing it in a different neighborhood that might have friendlier people, or do it in a time and place where there's likely to be a lot of people walking around the area (e.g., near a church before the end of a mass).
There’s something about an image that people are drawn to and that makes them click. I began to experiment with linking images to Amazon with my affiliate links, setting up a tracking code to test whether they converted. While they didn’t convert as well as text links, they did convert in some instances and to this day I still use this technique most of the time.
If you're serious about making money online, start a blog. Blogging is one of the easiest and most sustainable income sources. As long as the blog is setup the right way, in the right niche, with the right content targeted at the right audience, and the offer is complementary to the content, you could make a tremendous amount of passive income from a blog.
Find a profitable niche. Starting with your interests, write down as many niche ideas as you can. Think about topics people might search online. Ideas include passions (like surfing or body building), fears (like spiders or speaking in front of crowds) and problems (like getting out of debt). Do keyword research to see it others are interested in the topic. Find out if a domain name is available that matches the keyword 100 percent. 
My 10-year-old son brought home a book from our park’s free library box. It was a biology textbook – teachers edition. He said it looked interesting and hey, it was free (having no idea you could sell it). I scanned it in my Amazon seller app and realized it was worth around $150. He was so excited. We listed it for sale for $130 and it sold! Going to tell him, he just made $130!
However, one day I had a reader offer to write a book review for me. I knew the reader so I was confident the review would be OK to publish. As with all my reviews, it had an affiliate link to Amazon in it. I was a little skeptical about whether the review would convert. I thought my readers might not respond as well to a stranger’s review of the book. I was wrong.