An annual charge would give the company the freedom to adjust the terms on an annual basis in response to problems that are discovered. For a high-end product targeted at a very small market and a small part of the overall customer base, I think that makes a big difference.
The problem cable and phone companies have is that lots of people sign up for unlimited plans when available because of the mental transaction costs of doing anything else. That makes adjusting terms to manage heavy users harder because those adjustments also affect a large slice of customers where the unlimited deal is working as designed.
The problem cable and phone companies have is that lots of people sign up for unlimited plans when available because of the mental transaction costs of doing anything else. That makes adjusting terms to manage heavy users harder because those adjustments also affect a large slice of customers where the unlimited deal is working as designed.