Posted By:
identify7The demand for both is strong. The common because of grade rarity, the superstar because of player popularity.
If suddenly a cache of a dozen of each card in equal or higher grade (or popularity) is uncovered; the grade rarity card's value will plummet, the price for the superstar card will not change.
The risk/reward relationship appears better for the superstar card, but the choice depends on each collector's preference or collecting focus, no?
Edited to add: this response refers to your initial question.