I echo your sentiments on Costco but this is an argument for different metrics, not an argument against analytics.
There is no chance that Costco doesn't use analytics. They might not A/B test their online button colors for highest conversion rate, but I'd bet they have their own set of analytics to determine product quality, sales, returns, viability, etc.
This, thank you. I feel like people are making big assumptions about what "analytics" are that don't even begin to cover the whole spectrum of analytics.