I have all Samsung appliances at my home. They are the best appliances I have ever owned. I can't speak to their service because I have never had a single issue with any of them.
Congrats. I think you're in a minority. Our washing machine 'fabric softener' compartment started rusting less than a year after getting it. We had a long time and many back and forths trying to get them to acknowledge the problem. Their 'fix' initially was "don't use that". Finally - months later - they agreed to have someone come fix it, but it was going to be hundreds of dollars because we were "out of warranty". "But... we reported this to you with months left in the warranty period". "Well, tough luck" was basically the response.
My wife kept persisting - this dragged on for months - and eventually got some service rep to 'cover' this and a service guy came out. "Oh this is common - see this a lot with Samsungs in the last few years".
Relatedly, we had a dryer guy come out to fix the Samsung dryer. He indicated Samsung and LG were among the worst consumer-level brands for home appliances, based on their workload as service techs. But Samsung and LG have gigantic foot prints in the major retail outlets, so continue to get sold in to many households.
On the other hand I have their phone(S21) and I'm very happy with it.
Sales almost equal merchandise cost plus selling expenses. Membership fees add $984 million on top of that.
For the hotel and travel stuff, they get a commission like other travel agents/channels.
Whole bean? Just Major Dicakson in various quantities.
You could make an argument that the disposable cups will have a decent shelf life. 10 ounce bags of grounds won't though – that's kind of the antithesis of quality right there.
I've never had problems with Samsung appliances. Can't say the same for (supposedly high-quality) Bauknecht or Miele.
I bought into the hype and got a Costco membership a few years back. One of the first things I went looking for was whole bean coffee (Peet's xmas roast). The local Costco had a bunch of coffee from Starbucks and Peets (meh quality to start) but only the painfully dark roasts and all of it was ground. Pre-ground coffee in bulk has a pretty limited use case (and relatively short shelf life).
Fast forward to last week and I went looking for a new fridge at Costco dot com. They prominently featured LG (ugh) and Samsung refrigerators. While some LG models seem to review pretty well I've never seen anyone say anything positive about Samsung, their service, or the serviceability of their appliances. I'm in the middle of dealing with a defective LG fridge and that's about the nicest thing I can say about LG's warranty and customer support.
Costco may have a permissive return policy and decent customer support but I would never blindly buy something without doing a bit of research just because it's at Costco. Especially with a big ticket item like a fridge I'd rather use my Amex anyhow.