What is the worth of something precious or valuable, if all around it that same precious and valuable thing (or a very close substitute) is available for no cha

What is the worth of something precious or valuable, if all around it that same precious and valuable thing (or a very close substitute) is available for no charge at unlimited quantity? I wonder if Apple was aware the App Store would lead to basically infinite supply of (in many cases) beautiful and high quality apps for little to no cost. With 200 million+ users, many of whom have a greater than average tendency to pay $$$ for apps than your average smartphone user, an outstanding Apple developer has some chance of making money on the App Store - (That old saw about capturing 1% of a very large market) - but I really pity the third and fourth tier platforms - they are going to struggle. It's an IAP future.