I personally would never be without a truck and have owned various trucks since 1993. There have been too many times where I have needed a truck at the last minute and trying to find someplace to rent one or even borrow one is not convenient.
I also always have extra vehicles because I got tired of the days when one would break down or have to have something done and I had to get it fixed now so I could go to work or had to go through the hassle of renting one.
I understand that is not an option for everyone because of room or finances.