A Redditor ordered a $400 Mitutoyo vernier caliper from Amazon and received a very cheap instrument stuffed in a genuine Mitutoyo box.Buying from large online retailers raises the question of how much risk we are willing to take.While Amazon is a trusted brand, they are simply clearing houses for third-party products and may not have much care for what's in the box.The incident sparks a discussion on when to opt for specialist retailers and pay more for confidence in the product.