DelrayChris,
I agree with your qualifications for the card. I would say that around 60-70% of my expenses are for airfare, hotels, car, and restaurants. The rest is houshold junk and DVD's.
I wouldn't want the Centurion card if I weren't so heavily (for me at least, I realise for others I don't travel much) involved in travelling.
In the last month I have travelled over 30,000 flight miles on CO, one of the partners.
I am willing to pay the $1,000 fee and I think that I would meet the profile for the card, except for the $150K mark.
So I am not trying to get the card with non-qualifying expenses. The majority of my speding is T&E.
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CO Silver