Fair enough.  It probably should reflect percentages rather than some absolute.  So, in Maine, 1% of BBQ places are "decent", meaning average for Texas.  Maybe it's 0.1%.
In Atlanta, it's probably about 25% in my experience that a place is "good" in my book, and probably 73% that it's "decent" or better.  We tried "Heirloom BBQ" recently which consistently gets ranked number uno here, but it was for me in the good category.