A major upside to Costco is you can actually see stuff and you also can walk out of the store same-day. Also I never ever worry about the counterfeit and/or low-quality crap you inevitably get from Amazon. And if Costco sells me something crappy, I drag it back in and don't even have to start up the printer (it's a zombie at this point). Costco has a running rule that they never charge above 10% in profits so I know I'm getting a good deal too.