The main reasons you winterize are to get the water out of your lower unit, get any water in your engine treated by fogging, and to stabilize your fuel so it doesn't go bad. As long as there isn't any water in your lower unit and you run your boat up to temperature about once a month you don't have anything to worry about. I haven't winterized a boat for a number of years because I will use it thru the winter. Just make sure to keep the gas from turning bad and you will be fine.
Eric H.