A) Three-fitty is the old price, from back in the before time, the long long ago;
B) $13.50 is the current price, SF resident four-year-olds only;
C) $17 is the current price for all the other four-year-olds in the world; und
D) $27 is the future price, prolly, who knows, in 2020-something maybe, the way things are going
See?
The way to get around this would be:
Free days (for San Francisco residents only); und/oder
END OF LINE.
PS: Leg, It’s What’s For Dinner. Or at least it was what was for dinner for Leanne, the new (yet 13-year-old) Sumatran Tiger the other day: