Should I delete my Amazon account?

This past month, I did not buy anything from Amazon or Ebay... and I saved some money doing it. Fortunately, I have a good salary, but I still do not want to spend my money in useless stuff. I've kept my account because there is stuff one can find in Amazon that cannot be found locally, and it might cost me a fortune at another online site, because of shipping costs. But with so many scams…