Ask to use a computer to check prices on bestbuy.com before you buy. You can save a few bucks if you do! For ex; WD 1TB Black HDD - $89.99 online VS. $109.99 in store. Don't believe me? Try it!
The employees always seem to be helping other people when you need help. When you don't need help, they always are free, lol. Usually busy later in the day, so shop in the morning to avoid the crowds.
As few ppl already mentioned, online price is always cheaper. Altho they do price match, better purchase online & select store pick up to avoid the hassle.
I realize why I don't ever go to the big blue box. I ealked around the store three tomes looking for a particular item. I couldn't find it and no sales person asked to help me.