exclusiveness — The state of being exclusive; exclusivity.
non-selected — to choose in preference to another or others; pick out.
uniqueness — existing as the only one or as the sole example; single; solitary in type or characteristics: a unique copy of an ancient manuscript.
difference — the state or relation of being different; dissimilarity: There is a great difference between the two.
individuality — the particular character, or aggregate of qualities, that distinguishes one person or thing from others; sole and personal nature: a person of marked individuality.