Not having gutter covers makes no sense. It is an inexpensive way of protecting the stability of your house. Left unchecked, corrosion and rotting will start to occur and the damage will be so advanced that replacing gutter might be required or maybe even fixing walls and roof.

I always recommend getting gutter guards no matter how expensive or innovative you think your current drainage is. Gutter guards will prolong the live of your gutters and it will protect your biggest investment in bad weather.
Check your home gutters today. Is there some leaves or other debris in there? If the answer is yes, it is time to schedule an appointment with a gutter installation specialist, you should see that installing gutters seems economical relative to potential expenses due to poor planning. Ask for advantages and disadvantages of different materials and choose the one that fits better your house.