Costco also just announced they were getting rid of their Kirkland brand soy milk. The Daily Mail reported via headline, as is their habit, it as if this was the most popular product there, but the story read it is being discontinued due to lack of demand, and that non-Kirkland branded soy milk will be available occasionally.
As to the check-out at Costco, that is the one thing I cannot complain about relative to the locations I frequent. Even around the Holidays when the self checkout line is all the way back to the deli area, I still get out in 10-15 minutes after I get in line. Also, our locations do open quite a few cashier operated lanes especially when busy.