Just got the email and not complaining but trying to figure out the logic here for AA.
http://www.aa.com/i18n/utility/dfw-l...c=&pp=USSFO-IM
I presume these book into deep discount fare so SFO-DFW @ 1464 miles per segment one would need 7 segments in order to complete a Gold challenge and 14 for Plat. That's still not cheap
Gold for 18 months for $140 (fee) + $420 = $560
Plat for 18 months for $240 + $820 = $1060
Alas I don't fly AA much anymore and my Alaska and Qantas flights don't count towards the challenge. But maybe tempting as a mileage run for others particularly those who can use the status