The warehouse retail chain reported results that beat estimates on both earnings and revenue, and it has the pricing power to stay relevant to consumers in a tougher environment.Costco (COST 0.92%) reported earnings last week that caused the stock to dip around 3%. Overall, I think the stock is still a buy, with a few main factors going into that stance. Good numbersCostco posted net sales of $84.43 billion for the 16‑week quarter (up 8$86.16 billion (which includes me ...