That seems dishonest to me, if it's the same exact part and not mis-packaging: are the part descriptions the same ?

A buddy of mine makes racecar tools, and sells them to Summit, Jeg's, Speedway, and others.
They're all identical in materials, specification, and testing, except if the retailer wants their name etched/printed on the tool.
They all sell for about the same price, like within a buck, last time I looked, but business has expanded since then.
He doesn't control the retail price, though, so there could be someone marking them up more than the other guys do.