Underground parking possible – useful?

Hello, I will soon get a new car (new car). Now it would be possible to get a parking space in the underground car park with us. The car is otherwise on the street or in the own parking lot (not covered). The parking space in the underground car park would cost about 30 euros a month. I wonder if it is worth it to me. Actually, that is too much money to me. 360 euros a year is a whole lot. I could last that, but it felt more too much to me. ile are cool in the summer and no scratching in the winter. Ok, you can check the winter here more and more anyway. And in the summer you can often get a shadow place. Just the argument that the car is standing in the dry. Keyword rust and perhaps even less wear of the seals. But is it really worth it? In 5 years it would be 1800 euros. The saving in insurance would be just about 10 euros per year. I don’t know.