This is a classic and efficient way to allow people to visit Venice. If you are early or come at a slow time the price is low, if the number of people increase

This is a classic and efficient way to allow people to visit Venice. If you are early or come at a slow time the price is low, if the number of people increases, so do the price. So it's not a first come first serve, but an actual price of demand. Virginia did that on a highway used by commuters to get into D.C. where they want a minimum travel speed of 40 mph (might be lower) and the more people get into it, the more the price rise. From $1, up to $30 on a rare occasion.