[TeMPOraL]

Did you pay the sticker price or the intended price?

Over here in Poland we have a law that the store must sell you the good for the price it advertised, so in that case they'd be forced to accept $4.50 because of their mistake. May sound too biased in favor of the customer, but before that, the "errors" in price tags were more common.

[mrgoldenbrown]

We have similar rules in the US, but depends on your state. In mine they have to give you the price on at least one of the items but you can't demand they give you 100 of them at the wrong price. Or yes you can demand but they are not required to do so.

[MisterTea]

Intended price. Costly but it was too late as I already had steak on my mind.

[lazide]

In most US states, you have the same rules.

[codethief]

Might have been a marketing strategy. :-)