If you sell 50 copies independently for $100 you save $10 or $500. If listing it in the App Store means you would sell 150 copies instead, how much is that sav

If you sell 50 copies independently for $100 you save $10 or $500. If listing it in the App Store means you would sell 150 copies instead, how much is that savings worth? I didn't suggest it was cheap, I said many people find it's worth spending the money.