Yes, you will be losing out on all AA future offers for probably 18 to 20 months. That is the time you have to wait between successful Cit AA applications (not counting special invitations like the one you got).

(Plus you can only submit two Citi card applications in any 65days between any Citi card applications, AA or not, successful or not. Try more or more often than that, and you're guaranteed to be denied, and then have to wait yet another 65ish days.)

And you can probably apply for two (2) Citi AA cards every 20ish months, but only if you apply for both on the same day (preferably the same hour), for safety using two different types of browsers (eg, one card in Firefox, the other card in IE) to avoid the system getting confused between your two applications.

(But if you wait a day or more between the two apps, the second app will be certain be deined! That's why it's so important to decide ahead of time which offers you want to apply for and whether you'll apply for one or two at a time.)

And there are way better offers out there than 25k per card. See these threads in MilesBuzz!:

http://www.flyertalk.com/forum/miles...er-thread.html

http://www.flyertalk.com/forum/miles...ey-appear.html

Very unlikely. It's Chase that does bumps left and right, and still only when you apply for a new card, just not the new card with the best bonus, and then later you hear about the better bonus. (And they tend to have a few month time limit on it.) I don't recall hearing of anyone getting a successful bump up to a better bonus at Citi (the only bank that does AA cards).

Citi lets you apply for two cards at the same time, which IMHO more than makes up for the lack of "bumps", but it does mean you have to plan better at Citi than at Chase.