I've had the Chase BA card for years and usually do $35k a year on it. Spouse just received own card getting the 100k miles bonus. Does it make sense to cancel my card and hope for another 100k promotion w/i 3 years? We can still put some of my stuff on her card in the interim. Guess I'm asking how often has the 100k promotion been offered (first time I've been aware of it) and do you think the past is prologue. Thanks,