The problem with multi-tier, queue-based rental systems

I’m a huge fan of both Netflix and Gamefly. I love the convenience of rentals being delivered to my door and I love that these services afford me the ability to sample everything without breaking the bank every time I want a new game or film. The systems work beautifully and it’s incredibly simple to manage your queue. Unfortunately, as I recently discovered, both services become huge inconveniences when you want to downgrade to a lower tier.