Unsuccessfully buying a laptop at Best Buy

My wife needs a new laptop. We went to Best Buy. We found the laptop we wanted, with all the right stuff on it, at a price that we felt was reasonable. Just one minor issue. Like most laptops, this one idiotically had 1 Gig of RAM to run Vista Home Premium, so we needed to upgrade it to 2 Gig.

Me: "How much is a Gig of RAM for this laptop?"

Best Buy Employee: "About $120."

Me: "Sounds good. We'd like to get this laptop, but we want to upgrade from 1 Gig to 2 Gig."

BBE: "Okay, that'll be an extra $240."

(pause)

Me: "Uh, sorry... I just need 1 extra Gig of memory. That's $120."

BBE: "No, the laptop has 2 memory slots. Right now it has two 512MB memory cards in them, so you'll need to buy two 1 Gig memory cards to get to 2 Gig."

Me: "Riiiight... but I don't need the two 512s, which cost $120, so it's still only a $120 difference."

BBE: "No, you're buying the laptop as is, so the two 512s are your's, and to upgrade you need to buy the two 1 Gigs for $240."

Me: "And then I just throw away the two 512s?"

BBE: *shrugs*

Me: "You do understand that you've just lost this sale, right?"

BBE: *shrugs*