I do use rattle can when forced to do so. For example, the only art that I could get for my Rabeneick 120d were of the water slide variety. Meaning fragile and in need of a clear top coat for protection. I have never tried to brush a clear coat over waterslide decals, so I sprayed away...
My issue with spray is the mess that it makes everywhere in the room (Mrs. Me is rarely impressed) and, secondly, the tend to over spray resulting in poor surface appearance. This is my paint spray booth...
I never use oil based for spray painting, opting for lacquer every time. Once applied, the rubbing out process begins. Anyway, my most recent rattle can result with clear coat over everything, including chrome lugs and stays...