I buy just about all my electronics from Best Buy...18 months financing, rewards points, fast and easy no hassle purchasing (unlike local Apple store insanity) so ya what's not to like about BB. I am a recent Apple convert and bought all my Apple stuff at BB about 6 weeks ago, rMBP, iPhone, iPad, iPod, Apple TV, and Time Capsule. I tried to do the whole Apple experience thing and made 2 attempts to try and buy all the stuff at Apple store (I even opened a Barclays Apple card account) but after being made to wait both times I left after a hour wait the first time and the second time 45 minutes. After the second time I drove straight to BB and spent my 4 grand there, also it only took me 40 min to buy everything and get out of the store.
So that's my BB vs Apple store experience. I very happy with all my Apple stuff, but I'll never go back to the Apple store again.