Should i trade in my iphone 5s?

I wanted a simple phone this time but ended up reading articles saying that the 5s accelerometers were faulty on some models and I found out that mine was faulty. I'm sure many other people have this problem but don't notice or don't care. Should I trade it in for a new one or just keep it?

ex. If I want to go straight in a racing game I have to tilt it slightly to the right because it tilts slightly to the left when completely horizontal
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I would actually make an appointment at hte apple store and show them the game so they can see its off as you say.