Most collectors want PERFECT proof coins, not so much the difference between 69 and 70, but the fact that it has a struck through error. Buyers are more likely to purchase a "perfect" 69 than yours with a struck through error. I'd say discount $5 from the price, IMHO.
EDIT: just saw that yours is a early realse... Not sure now, lol.
Edited by ChildOfTheWheat
10/04/2015 9:36 pm