It would be wise to consider submitting that to a site which has a lot of traffic.
Afterwards, you can write another article that somehow pertains to the article you already submitted; it may be very well worth it if you want to see literally different material in the search engines, even if that different material gives the same basic details of what make up your message.
This is a strategy that is sure to not only increase traffic, but to also possibly pull readers to buy depending on your style of writing.
If it "pushes" people from buying, you can be sure of less chances of sales.
Consider that person on that day who attempted to "push" sales on you; "Sir?! Can I ask you a question?" I think we both can agree on the primary results that kind of mindset can bring.
Readers are likely looking for solutions for possible problems, looking for some more variety in their lives, or other.
Be the one to satisfy these for them and what you have got is a probable increased likelihood of sales.
Another consideration is that if you can successfully submit an article to a particular article submissions site that may appear somewhat challenging to submit to, this may show you that the chances are greater that your kind of writing will be accepted on many other article submissions sites.
Think of dominoes when going about doing this; the more articles you can submit on the Internet, the increased likelihood you will see sales for whatever you are trying to promote.