I for one would not be interested. I currently have a great card. I get 1% back on ALL purchases with no threshold before I get my 1%. I also get 5% back on certain items that change every 3 months. It is a Chase Visa card.
I know the money would go to support AMAC, but I get back a good amount each month since practically everything we buy, outside of groceries, goes on the card.
If AMAC needs money I would prefer to just donate it instead of having another credit card, something I do not want or need.
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...IF it were possible for Muslims to co-exist with others, there would be Christian Churches and Jewish Synagogues in Mecca.