I have a domestic US flight on 24-hour hold. I am guessing that the fare is likely to go down. Other than the issue of whether I want to spend my time doing this, is there any reason why I should not continue to make and hold reservations, 24 hours at a time, until the fare goes down -- or goes up, if I am guessing wrong -- and then ticket it?

I would not hold multiple reservations. Instead, I would make the reservation, put it on 24-hour hold, then promptly cancel my old reservation. (So I would be double booked on the same flights, but only for 5 minutes or so). Then the next day, I would do the same thing -- until I get a fare that I am satisfied with.

Is this behavior likely to get flagged in some way by AA? Is it an abuse of the 24-hour hold privilege? Or am I entirely within my rights to do this? Thanks.