Because with just less than fifteen euros, you can see not only all the information about the vehicle (make, model, displacement engine, chassis code, etc.) but also all the personal data of the owner (name, surname, date and place of birth, place of residence) and if the car is leased/mortgaged/seized or not.
With fifty euros, more or less, you can also know all the previous owner(s) of the vehicle, useful if is a second-hand car.
Evidently also Walter takes enough care of his personal privacy...

@Walter: Am I wrong or this is the parking lot of a car repair shop or a panel beater?

Looks like that in front of the Maserati there's also one of those small electric cars used as dodgem cars... (What's the proper term in English?)