Not only that, it can run up to $500 or more per underground parking spot in maintenance per year for electricity, physical space and entrance maintenance, fire

Not only that, it can run up to $500 or more per underground parking spot in maintenance per year for electricity, physical space and entrance maintenance, fire safety systems and obligatory insurances. Additionally, you might not be allowed to store anything except a car in your space and not allowed to perform any activities there except driving in or out (no small car repairs!). What if you're alone with a baby and shopping bags and there's no elevator? Compare this to an outside parking space: none of that applies. I'd love to hide all the cars away from the street but I didn't realize all these differences until I got myself an underground spot.