So I just went past 4MM in January and unfortunately these thresholds seem to be coming faster and faster these days! I see that I actually had over 100K miles added in January with about 35K actual miles flown....so the thresholds just keep adding up.......another Million miles.....new Bag tags.....4 more eVIP's....etc, etc...
Ho Hum!!! 
My question is does everyone get the same note from AA or does it change after say 5MM or 10MM???
Dear paul5E,
Congratulations on reaching the next Million Miler level!
As the millions of miles add up, there are fewer members who earn this special designation. In just a few weeks you'll receive a new elite membership card that acknowledges your multi-Million Miler status - plus some other gifts we think you'll enjoy.
We are gratified by your dedication and confidence in us. Thanks for your commitment to American Airlines and the AAdvantage program.
Yours truly,
Kurt Stache
President
AAdvantage Marketing Programs