It's a nice thought, but having a 1/50,000 chance of a user seeing my app when they load the App Store is the same as zero to me. You might make a few bucks her

It's a nice thought, but having a 1/50,000 chance of a user seeing my app when they load the App Store is the same as zero to me. You might make a few bucks here and there, but I doubt it will have any significant impact on your sales. Even if 1/10 users bought your app when they saw it randomly, you'd still need, on average, 500,000 of those random views to make one sale.