There's been a lot of threads lately about credit and credit cards. OP, it's your life and you are in control of it. Do what you think is best.
That being said for me personally it's no credit cards and no consumer debt. I think home loans and automobile loans are unavoidable for most. Credit is not evil, just dangerous if not used wisely. For those saying you must have it to get by in life, well, I don't entirely agree. Financial institutions still use underwriting and it is possible to navigate large purchases without a consumer credit driven FICA score. That being said, our world is moving in a direction where this ridiculous system may take over and everything in life will then be based on your creditworthiness as opposed to your work ethic and past financial responsibility. I truly hope that never happens, but I'm afraid it could come to pass.
Last, to those of you who are "beating the system" and proudly proclaiming that you never pay the credit card company a dime, know this, you are in the minority. The credit card comapnies outrageous financial success is evidence that not everyone is as fiscally responsible. You are not the standard, but the exception.
Credit companies are not in business to help people achieve their financial goals, they are in business to make their own profit. If you do some simple research and read up on history then you will see that life existed before credit.