Some menu costs aren't so small

From the Washington Post:

Like a lot of small-scale entrepreneurs, Cathy Osborne worries that she'll go out of business if fuel prices rise above $4 a gallon. Not because she won't be able to buy gas at that price, but because she won't be able to sell it.

The old mechanical gas pumps with scrolling dials at her country store in Fauquier County lack the gears to go beyond $3.99 a gallon...."I don't know what I'm going to do. I don't have $30,000 to invest in new pumps."