I subscribed to some type of MySQL Support 15 years ago. It was about $150 a month and I figured I would never need it. One day I had a really difficult problem, so I emailed support. We went back and forth a few times and then they informed me that their "support" plan meant I was supporting their project, not that they would support me. I guess I got fired as a customer. This was the first time I had heard of this. Calling it "support" made it easy for the company to justify and buy.