Uh, Jim?
I hate to be picky about this, but to me matchbooks aren't an "all or nothing" situation...especially if it happens to be an uncommon matchbook.

Sure, we prefer full matchbooks, but we rarely convert a partial book to a cover only (unless it's a duplicate). A gambler (or someone!) used a few matches...no big deal, that's what they were made for. Full books are preferred, but we'd rather have a partial book than a cover only...though a cover only is better than nothing!