Dept stores often have their own quality and content criteria for many items (including bikes), even though they may be made side-by-side with other items of a particular name-brand.
This is a good article describing how Snapper ended its relationship with Wal-Mart, and why. Makes you wonder what other "name-brand" goods aren't the same there as they may be elsewhere.
http://www.fastcompany.com/magazine/...n_snapper.html