Take a closer look at the ActionScript 3 memory consumption, when stored huge amount of values in Vector and Array. First list of uints:
(10000000 / 32) uints in a Vector (10000000 bits) = ~7k (10000000 / 32) uints in an Array (10000000 bits) = ~1228k
… and list of Booleans:
10000000 Booleans in a Vector = ~8k 10000000 Booleans in an Array = ~39070k
Read more about AVM2 Memory Considerations.