In addition, customers in those coastal hubs (SEA, LAX, BOS, NYC) DL has spent so much on building up over the past decade are going to have other options.
1) It is no mistake that Delta has invested millions in upgrading clubs in all of these four hubs
2) Given that - it is strange to me that they went with 10 visits for the Delta Reserve (I get the Amex Platinum limits). They spent so much on these clubs in these compeititve markets, then really kneecapped their premium cobranded card