Originally Posted by
msNJV
You can only have a maximum of 2 personal credit cards and I think the platinum airmiles is a credit and not a charge card, you'll have to drop your SPG in order to apply for the Air Miles Platinum

You're better off with one of the charge cards (Gold, Platinum)
Thanks for the reminder of credit vs charge cards

I will keep SPG for now and will worry about Amex Air Miles later on.
I cancelled Business Gold in January, had it since February 2015 - is it too early to reapply?
I am mildly interested in Platinum charge card with 75K sign up bonus since many of the airports where I will be do not have a Priority Pass lounge. How does car rental get charged when booked via portal for $200 credit - when the car is booked or when it is dropped off? It looks like to me it is charged when it is booked.