I'm not a churner (believe it or not), so I normally don't choose cards based on their sign up bonuses. I sign up for cards that are keepers, looking for the best savings in different categories (the only exception being the CIP, which I plan to PC to a CIC after the first year). I use all of my cards for specific categories depending on what has the biggest savings. I only use my URs to transfer to SW for flights, so their value is 1:1 for me. That's what I like about this thread, I've learned a lot even though I don't "play the game" the same as others. I love hearing different viewpoints and opinions here, like yours, because it forces me to slow down and think outside of my tunnel vision plans!
With the Costco card, I'd use it for gas and Costco purchases. Gas would get me 4%, Costco would get me 2%. The restaurants and travel at 3% wouldn't make a difference, I already have a card that gets me 3% on dining (which has rewards that can be redeemed for Disney GCs) and I use the CSP for travel (only 2% but now I know it includes insurance thanks to everyone here!). We already shop at Costco, and if it's not a 5% category on another card I'm using my CFU which only gives me 1.5%. The once a year check isn't terrible because we'd definitely use it in Costco. I know it's not a great card, but I'm drawn by the 4% on gas all year vs 1.5% on my CFU when it's not a category.
This DIS thread and DISchurners are judgment free zones. You do you! And I’m not going to judge.
I agree that the Citi Costco card is actually a pretty decent card no fee card, with solid bonus categories (4% gas, 3% restaurants and travel, 2% Costco, and 1% all other purchases). A lot of people say the same thing about the Uber Visa (no AF, 4% dining, 3% hotel and airfare, 2% Uber, online purchases, and streaming services, and 1% everything else). For a one credit card kind of person, these are not bad options.
We like to poke fun at the Costco credit card because on occasion, we’ve seen the SUB offer a rotisserie chicken, a 5 gallon bucket, a case of 24 bottles of water, a cooler bag, a tote bag. At least the Uber card has a $100 SUB. We tend to go after SUBs worth hundreds of dollars, so wasting a hard pull and a 5/24 slot on either card kinda makes you go huh? The Costco and Uber card may have very useful categories for ongoing spend, but you’ll need to spend thousands in those categories to make up for the loss opportunity at larger, more lucrative SUBs — many on cards with good category bonuses too.
Take for example, the 2% back at Costco. Instead, I use my Amex Gold (which has a 50k MR SUB) to buy VGCs when there’s a deal at grocery stores for 4x MR, or a CIC (which has a 50k UR SUB or can be PCed from a CIP) to buy VGCs when there’s a deal at OD/OM/Staples for 5x UR, then spend the VGCs bought at higher bonus rates at Costco. Or the Costco card’s 4% back on gas. Supermarkets and office supply stores sell gift cards to Chevron and Shell at the same 4x MR or 5x UR on the cards mentioned previously. Alternatively, my Amex BGR earns 3x MR on gas (the Biz Gold that replaced the BGR earns 4x MR on gas and has a 50k MR SUB), the Bonvoy Biz earns 4x Marriott (and has a 75k, occasionally up to 100k Marriott SUB), and the CIC earns 2x UR. Not to mention the occasional Amex Offers for gas and other useful things. Granted, many of these cards come with a fee, but also offer benefits that offset the cost or you’ll just cancel it after a year. But if a category bonus on a card is really useful, that rounds out your wallet and weighs towards keeping a card even with a fee.