Next month I will start a new job in Boston, and on top of that the annual fee for my Chase Sapphire is due so I have to decide if I want to keep it. So this has sparked a strategy re-think for me and I would love to hear everyone's input/suggestions. Plus, I just got back from a wonderful 3 week vacation, so my mileage accounts are all pretty empty and I'm not feeling all that tied to any program. About Me: Currently I'm a 2P on UA, though I'm not likely to requalify for next year. I fly most often to SEA, OAK/SFO, MSP, and JNU once every other year or so (around 30k miles in a good year). The majority of my miles come from c.c. spend. I split most of my spending between the Chase Sapphire (hotels, dining, and anything while abroad) and my UA MP Select Visa (gas, groceries, and airfare from UA). The Select Visa is great because it has 2x miles on gas, groceries, and dining plus 3x on airfare. The majority of my Chase points went into UA miles. I'm tempted to ditch the Chase Sapphire. I would lose 2x on travel, the flexibility of transferring to Hyatt (the only option I would use besides UA miles), and the waived foreign transaction fees (came in handy the last year, but I probably won't go abroad for a while). The UA MP Select Visa, however, is a great card with 2x on gas/groceries - so I won't lose much earning ability when it comes to UA miles. On top of that, upon moving to BOS, I'm also tempted to give up on UA altogether. I feel that my destinations might be better served by a combination of DL and AS, where I can credit all my flights to AS (as well as the occasional AA flight). I would then switch my cards to the AS Visa and/or the SPG Amex. I would lose out on the earnings potential of a 2x gas/groceries card (which is huge), but the AS companion pass would definitely be useful with the non-stop BOS-SEA flight. I would also lose out on the remainder of my UA Silver Status, but... without E+ at booking its not as appealing as it used to be. It seems that the crux of the decision is bonus c.c. categories (UA) vs possibly a larger/better route network from the combined AS/DL/AA, and the companion ticket.