I got rid of Amex business. Upgraded Marriott as it now gives same on property stay points as Amex .
Will keep Amex personal until Aug 1 and will cancel or upgrade to Amex luxury potentially . I too don't like certificates so do not want or need so many cards . Will probably keep Marriott only because visa is far more accepted in areas I travel (don't thank ive ever used Amex in city in which I live unless eating or doing and staycation) .
Amex is losing my loyalty (see above for my cs experiencr will them on devaluation) .
Though I might do Amex hilton, though they don't have enough nice resorts in Asia to offset cost will resort credit