This offer has "boom", no question: A monthly ticket for 9 euros, which is also valid nationwide - if you don't use it, you really don't get anything out of local public transport.
In Berlin, Hamburg, Frankfurt and Cologne, the regular customers already rubbing their hands.
There, the car is already the worst alternative for permanent traffic jams and parking shortages.
However, the transport companies need more persuasion in rural areas, where a dozen tractors drive past the bus stops before the next bus stops.
This will not change even during the biggest discount campaign of all time, because there is a lack of time and money for the consistent expansion of local public transport.
First of all, the transport companies are busy implementing the price reduction at lightning speed and mentally preparing for the completely incalculable rush.
It is quite possible that this campaign will backfire: Overcrowded trains on hot summer days are not tempting, but deterrent - even for 9 euros.