A call to Aadvantage desk disclosed that the award requirements using "old miles," those that had no expiration time, remain as they were when those miles were earned. For example, two coach RTs to Europe cost 60K miles. Similar requirements apply to other awards. Interesting. I don't think they, AA, advertise this policy but it sure helps Nate and his sidekick who have 700K+ of the old miles and would benefit all others who have "no expiration" miles - if it is accurate and not an "agent error."