I've read a number of posts on here about venting but didn't see the answer to my exact question. I have a 1950 house in Atlanta, GA. with no soffit vents, but 2 gable vents and 2 turbines. I am getting estimates for a new roof. One person gave me an estimate which included installing new turbines. Another recommended removing the turbines and installing a ridge vent (98'), and his estimate includes that, and is about $500 more than the other guy. Otherwise, they seem about the same. Would ridge vents be so much better than the turbines I currently have that it would be worth $500 extra?

Thanks for advice.

CL