Welcome to our forum Lucky 7. Your question is really a broad brush question with no definitive answer. It depends on so many interrelated factors including: what options you want, a Z51 or non-Z51, how many previous owners, CARFAX details, what is most important to you in a car, what you plan on using the car for, etc. It (mileage) is far less a concern if you are purchasing a CPO C7.