Google reader was introduced, made it look like it would be there forever and cost nothing, which killed any alternatives. Then Google killed reader in favor of

Google reader was introduced, made it look like it would be there forever and cost nothing, which killed any alternatives. Then Google killed reader in favor of Google+. At that point, there was no good reader, and even with not-as-good alternatives like feedly, a lot of people didn't feel like setting things up again. As a result, the whole ecosystem was knocked out of balance and never recovered.