When I saw more and more products (mayo, smart balance butter spread, etc.) being mixed with Olive Oil, I started buying those. I mean, really, I know mayo and butter spread aren't the pillars of healthy eating, but used in moderation, they can be fine. The EVOO just adds a better flavor to it, and might help cut down on the bad fats typically found in those products.
If we grill anything in a pan, we add a dash (1-2 T.) of EVOO or avocado oil to the pan. Butter spread is usually for breakfast items (eggs, toast, bagel, grilled cheese).