Contrary to other posters here, I've never actually had a bad buying experience
at best Buy. But then I usually had some idea of exactly what I was looking for before I went in. At the moment the following equipment in my house is all from BB:
52" LCD TV (store brand)
40" LCD TV (store brand)
Sony Blueray Player
combination VHS DVD player (store brand)
1 DVD player (store brand)
Wii station and accessories.
Numerous DVDs including TV sets (all of Stargate, Stargate Atlantis, Babylon 5, The Incredible Hulk [Bill Bixby] and more) and most the new Doctor Who seasons. I think my roomie ordered two seasons from Amazon.
My only bad purchase there was a Sprint Android phone, but that's more the fault of Sprint than BB. The BB sales clerks were friendly and helpful. Sprint let them down with piss poor cell service along my commuting corridor. That service is getting disconnected this month.
Obviously, YMMV. I do have a friend who reports issues similar to most of the postings here.