Contests on SMP

I fail to understand why the winner of the contests is based on sales.

If, for instance (at the extreme) an arrangement of Chop Sticks sells more copies than an arrangement of America the Beautiful, then Chop Sticks will win the contest. If America is more complex, more interesting, more cerebral, it doesn't matter...only sales matters.

Shouldn't a contest be based on artistic excellence rather than sales?

Just food for thought...