While I hate that you basically have to make an on-the-spot decision, they absolutely crush it on quality and price 9 times out of 10.
https://www.amazon.com/High-Sierra-Visalia-Hydration-Backpac...
http://www.costcoweekender.com/2016/03/high-sierra-visalia-9...
For example, coffee. The vast majority of what I saw on the shelf was ground coffee – for personal use bulk whole beans are a better value because they stay fresher longer. Most of it was also Seattle's Best / Starbucks / Peets, not terrible but particularly good either. Kitchen equipment – Costco has great prices on Le Creuset, but only has two sizes listed online (both oval). Laundry detergent, mostly heavily scented stuff, pass.
IMO discoverability is on par with Amazon (not a good thing) which discouraged me from spending more time than necessary in the warehouse.
I was looking on the shelves that were stocked with (ground) coffee. If there is a separate aisle for whole bean coffee I didn't bother looking for it -- I dislike the unlabeled aisles and don't want to wander through a huge warehouse looking for a needle in a haystack.
Granted I only skimmed the brands I knew I wasn't interested in (e.g. Starbucks) so there may have been some whole bean coffee on the shelves that I wouldn't have bought in the first place. I definitely haven't seen customer use coffee grinders though. It could also come down to differences in what the warehouses stock, but I'm not going to drive all over the Bay Area to find a Costco with whole bean coffee.
I just though of something else about the dutch ovens. Costo.com also lists a Lodge enameled dutch oven for $58. It's the shape (round) I was looking for and about the right size. I passed because I was looking for a made in not-PRC one. Amazon carries the same Lodge one for only wants $60 though. I ended up with the Williams-Sonoma house brand one (made in France by Staub) for less than Costco wanted for their similarly sized Le Creuset one.
I've heard good things about the print lab, pharmacy, and optometrists but have never used them. The Costco prices on vaccines compare favorably to the normal prices of the city/county run SF clinic, but not by a whole lot. The state of California subsidizes some vaccines for low income folks though. At $26 those are cheaper than what Costco charges (except for the flu vaccine).
https://www.sfcdcp.org/aitc/aitc-regular-prices-low-cost-or-...
https://www.costco.com/Pharmacy/adult-immunization-program.h...
The price/value proposition just wasn't there for me.
And that’s not really how Costco works. I don’t buy coffee there either, to be fair.
Yep. However I went in looking for coffee that Costco does stock (Peet's Holiday Blend) and only saw it pre-ground. I looked around for other roasts that grocery stores sell as whole bean in 2 lb packages (e.g. french, espresso, or italian) and only saw pre-ground on the shelf. The prices were on par with what Safeway charges off-sale.
Even for other items where I largely don't care about a specific brand the quality or price wasn't worth maintaining a membership.