The membership counter at a Costco store in Richmond, California. (Photo by Justin Sullivan/Getty ... [+] Images)Getty ImagesCostco Wholesale ruffled some feathers earlier this year when it warned that subscription rates were going up for the first time since 2017, but the bulk discounter beat earnings estimates for its fiscal first quarter yesterday.And along with Walmart, the discount retailer has successfully surfed the inflation wave this year as price conscious consumers have turned to cheaper options ...