An old lady buys SPAM

I'm at the drug store and this little old lady in front of me is buying Spam:

cashier: This is going on sale tomorrow you know.

old lady: Oh, I thought it already was.

cashier: No, it's $2.99 right now, don't know how much it will go down to tomorrow.

old lady: That's OK, it's for my nephew. He loves this stuff.

Poor kid.