Costco and Trader Joe's have major drawback in common
Both stores have many loyal fans, but there's one practice customers can't stand.
If you were to do a survey of people who shop for groceries on a regular basis and ask them which stores have the best customer service, competitive prices, and fun mix of products, they’d probably give you two answers – Costco and Trader Joe’s.
Of course, Costco and Trader Joe’s clearly have very different business models.
