Not sure how it works for Macs, but you need to be careful comparing Costco PC prices to the "outer world".
I've found that the Costco price will be comparable to BestBuy/Staples/etc, but the computer will be a much better configuration: double RAM, i7 vs i5, things like that. They don't offer the widest selection at any given moment, but the ones they have are typically loaded up. The Dell laptop I'm typing this on would have cost nearly 25% more anywhere else...including Dell's own site.
Yoga class makes me feel like a total stud, mostly because I'm about as flexible as a 2x4.
"Design"? Possibly. "Intelligent"? Sure doesn't look like it from this angle.
We used to be hunter gatherers. Now we're shopper borrowers.
The three most important words in the English language: "Front Towards Enemy".
The world makes a lot more sense when you remember that Butthead was the smart one.
You can never be too rich, too thin, or have too much ammo.