I think of it like a homemade carrot cake versus a store bought individually wrapped slice.

Technically that factory made carrot cake is perfect every time. It is the same recipe, color, and quality as the one next to it and the one you bought last year. That said I would nearly always prefer a homemade or bakery made carrot cake more. Nothing wrong with grabbing the "perfect" one in a pinch, but it is missing something that I can't quite describe. Maybe it is a more generic recipe, or maybe it is the preservatives, but there is a difference.