Shifu said..
Very unimpressed with Costco. Same crap but in huge quantities. Pointless for a single person.
Like Aldi it doesn't impress the first time(s).
I worked nearby and the fuel price made it worth membership.. one day I put $20 in on the highway and then filled the rest of the tank at costco and it was 26c/litre cheaper.
Because I had membership I shopped there a lot.
Generally what I found was they were different to the common misconception: 26 litre jars of the cheapest mayo you can get for $3 (ie massive, poor quality, cheap)
What I found was: they chose the best brand and stocked only that, then the bulk(ish) purchase brought it back to similar cost to cheap brands elsewhere.
Also: Thurs or Fri evenings you can eat free, seriously one time they had about 5 hot food and 5 cold food samples going at once, and decent serves like whole slices of pizza or bowls of curry.
My favourite purchases were the frozen laksa/pad thai/tom yum range, add in some of their prawn hargow for a big tasty asian meal for under $5. The fresh salads from 'the salad servers' were great, cook at home pizzas too, and the mince at $7kg with <10% fat is a bargain. The alaskan salmon bbq patties are amazing for quick healthy family weekend lunches.