Since she has no clue, Costco will get her 90% towards the best price. Sure if she was an expert like everyone on this site thinks they are she can get a little bit better but for ease of use something like the Costco program is great.
Costco also runs some deals every once in awhile. Until the end of the year they are running a deal where you get $700 or $300 cash card (depending on your membership level) for purchasing a GM product on top of GM supplier pricing and all rebates.
Costco also runs some deals every once in awhile. Until the end of the year they are running a deal where you get $700 or $300 cash card (depending on your membership level) for purchasing a GM product on top of GM supplier pricing and all rebates.