Posted By:
Marc S.The reason that 1915 Cracker Jack's are worth more than their 1914 counterparts is precisely because they are easier to find.
The 1914's are so hard to find at all, not to mention in high grade, that most advanced/deep-pocketed set collectors avoid the set. On the other hand, building a high grade 1915 CJ set is a function of money more than anything else -- if you have enough, you can put together an overall NM/MT set with enough time and money.
1914's are just so hard overall that they are ignored. Thus, the demand is not there, and the money flocks to the 1915s. There are a lot of vintage issues for which this sort of paradigm applies (e.g. easier to find sets are worth more simply because they are more widely collected)