Google Reader, like many other Google products, was developmentally mature (read: relatively cheap to maintain) and drove users to profit centers. An example th

Google Reader, like many other Google products, was developmentally mature (read: relatively cheap to maintain) and drove users to profit centers. An example that more closely fits your criteria is Google Play Music, which was superior to its replacement, Youtube Music, and which I paid monthly for. I cancelled my subscription when they sunset it.