The city, in turn, no longer has to process, collect, count, and transport coinage received in payment of over 11 million trips per day.

[2] Buenos Aires was affected for several years by an acute coin shortage that impacted the economy, banking, and transportation.

[3] Merchants have been rounding prices up or down according to the amount of change a customer actually has, or bartering, and making up the difference with a menial item.

The fact that the vast majority of users need to purchase ahead sufficient credit for tickets and passes including highways tolls even for a complete month makes the SUBE card system carry a float of several million pesos which allows for financial backing of various activities at local government level and also, it took too much time for the customers to pay with coins in a rushing city with millions of people.

Furthermore, the system has expanded to the mayor cities of Argentina: among others Mar del Plata, Villa Gesell, La Costa Partido, Pinamar, Bahía Blanca, Corrientes, Neuquén, Río Grande, Ushuaia, Formosa, San Salvador de Jujuy, Paraná and Santa Fe,[4] According to official SUBE website[5] it can be used in all national, province and municipal buses lines within Greater Buenos Aires Area.