Opinions, please?

So Kroger is doing a promotion where if you buy store gift cards in the amount of $300, $600, or $1200, they will add 10% to the value. I'm sure there's a catch somewhere (besides the obvious one of having to have that much money up front).

Dale says there's no catch; you buy the card, they tack on the bonus.

I'm less trustful.

Your thoughts?