If I go into Best Buy and buy a hard drive (I don't, but play along) and I get home and it doesn't work because of a broken connector... I bring it back to Best

If I go into Best Buy and buy a hard drive (I don't, but play along) and I get home and it doesn't work because of a broken connector... I bring it back to Best Buy and have them replace it for a new one. Best Buy sold it to me, I paid them for it, it's their responsibility to resolve any problems. If it's 6 months later and the drive starts to fail, I'm in warranty territory at that point. For this case, I go to the manufacturer. So I guess there's some grey area.