When you walk up to the counter of your local coffee shop you are
not asked, “would you like a cup of our free coffee, or would you
like to select from our paid options?”. If Starbucks gave out free
coffee every day there would be mile-long lines at the drive thru.
If the free coffee was anywhere close to as good as their paid
stuff people would abandon the paid en masse. Some would pay maybe
because they felt bad, as a freeloader. Others would pay because
they preferred the options available to them in the paid column
vs. the free. Now imagine the free selection at starbucks was
nearly as large, or larger, than the paid selection: Welcome to
the App Store.