I've had 4 AmEx cards - Plat, DL Plat, Personal Reserve and Business Reserve for two of us. Now cancelling all but the Plat. Saving well over $1,000 in fees and moving $180,000 in spend over to Chase. Getting off the treadmill will be liberating.
Still not sure why DL made such a drastic move to reduce the number of Diamonds. With FCM, upgrades are worthless when needed.