Bests & Worsts Reviews from Amazon

First I have to say that I feel sorry for the customer service people that work ay Amazon and that all of them have been nice even with the fact their hands were tied. I got my first Kindle Fire in Feb of this year 2012. For many months I enjoyed it with no problems. Then the charging port became loose and would no longer charge. Called Amazon I was sent a brand new Kindle Fire. Sweet!! I did notice the port was loose right away but figured hey maybe this was the "fix" to the problem. Two months later same thing. Sent a new Kindle Fire. A month after that same thing. Now another month later same thing working on my fourth. After all this I requested an "up grade" to which I was told policy would not allow it. Now I feel angry and DO NOT EVEN FIND NEW KINDLE FIRE HD APPEALING. I am scared to buy any Kindle Fire product after this. Super sad too due to the fact I may have to find a new tablet company. I loved my Kindle Fire but now I do not even want to open the box with my fourth replacement Kindle Fire just to be let down.