Possible (mutually exclusive) solutions:

- Increase the item level requirement when you reach level 60, 70, or 80, so when you reach those levels you will be required to have your high level gear equipped to join the queue. For example, when you reach level 70, you will have to be a high enough item level for Orbonne Monastery to use the Alliance Raid roulette.
- Split the Crystal Tower raids into a separate roulette with lesser rewards.
- Replace the Alliance Raid roulette with a daily challenge that changes each day, cycling through all the alliance raids in the order in which they were released. For example it would start with Labyrinth of the Ancients, the next day would be Syrcus Tower, and so on until reaching Orbonne Monastery, after which it would loop back to Labyrinth of the Ancients, and the cycle would continue.