was in this boat last year. there are some posts and threads if you search for "EGE" with the quotes. I seem to recall buying mine in May as soon as they were loaded for Christmas, as for a place like Vail, I really didn't expect them to get cheaper as time went on. Too early right now, but start checking next month, IMO. Good luck and have fun.
PS They never seem to load them 330 days out, as it's a seasonal city for AA. However there is ZERO chance they'll stop having AA flights to EGE.