DLCs: Games are expected to have DLCs nowadays, so game devs purposefully hold back some ideas for potential DLCs, often crippling the main game as a result.
Subscription services: For pretty much anything, but especially those automated monthly payments, which you won't bother cancelling, even if you feel like you're not using the service to its fullest.
It's got to the point some people complain when there isn't DLC. They just want to play the same game forever. Also, paid games with free to play style bullshit. At least as scummy as these free to play games can be you can at least try them out.
Also, DLC is almost a complete misnomer nowadays. Everything is content and is downloadable.