I have to think the panels are much rarer and therefore much more valuable. Unfortunately PSA does not give SMR pricing for the panels. If a bazooka Mantle single is selling or $1000 or more (which they are) what is the much rare panel worth ?? 2x ? 3X or more ??
I am personally chasing a complete bazooka 1960-71 panel set which you can see here
https://www.psacard.com/PSASetRegistry/composite/14552
PSA included "panels" from 1968 which I wish they hadn't done but it is what it is. Will anyone ever have this complete graded set ??