Graded Set Building: What grade range is best?
I'm building a 1959 Topps Football graded set. My question is: is it better to have the entire set in a general grade range (say, mostly 6s and 7s) or better to have high-graded stars but also some lower graded stuff?
I ask because I have some highly graded stars (an 8.5 Bart Starr for example) and some highly graded commons (several 9s), but also some 4s and 5s. Should I sell off the high grades and keep the set all in the same range? Or is it always good to have the high-graded stars, no matter what the rest of the set is at?