Way back when I just starting in IT, I worked as a service tech at a "Beast" Buy. They did not care on whit on repairing things just on getting the warrantee and selling installs of software for $30. I was glad when I left.
I took my computer in for repair on December 5th. It was messed up bad. The processor would suddenly spike in temp from 32 C up to 70 C or more. It would shut itself off multiple times a day. The local guys are all pretty helpful, but they determined it was the motherboard, which meant they had to send it in to the service center. After two weeks, the service center sent it back with out fixing anything, they merely changed the power supply. So they sent it back in.
I got fed up with waiting so I stopped in yesterday. They told me my computer had shipped out so it would be here today. I asked him to read for me the service center comments. The comments said, "replaced DVD burner and hard-drive - boots up fine." What that has to do with my problem I don't know, but I am betting they fixed the wrong thing again.
What gets me is that I only have a year left on my warranty. Their continued failures will have chewed up 6 weeks by the time I get my computer back and working. So they will have less liability remaining for my warranty as a result of their mistakes. There is no way they should benefit from being incompetent. I swear, if I have to stand out in front of their store with a "BEWARE OF THE BEST BUY WARRANTY SCAM" placard, I will. I want my pound of flesh at this point.