Related Clues:
- Most coveted by collectors, perhaps
- Most valuable, possibly
- #1 in exoticness
- Most prized, often
- Most red
- Like the most valuable baseball cards, e.g.
- Most scarce
- Least done
- Found least often
- Closest to extinction
- Closest to unique
- Least cooked, as steak
- Hardest to get hold of
- Least ordinary
- Pinkest in the middle