Originally Posted by
OskiBear
No harm in steering a bit of the spend over to an AA card for some status - doesn't necessarily need to be EXP. If he runs through that much on the card, it shouldn't come at that much of an opportunity cost.
Of course there's an opportunity cost. Every dollar you put on an AA card is a dollar you can't spend on a different card. For the $125K you'd spend to get Plat Pro, you'd be giving up somewhere between $1250 and $5000 in terms of the value of AA miles versus what you can earn elsewhere.