Advertising photography has many aspects, above all the transmission of all the preciosity of the product you are looking at / shooting / representing, and then the preparation of it, the love that has to be conveyed through your image. Details, sensations.
Most exciting of all is the challenge of the impossible task: the egg that breaks, the trays which float in the air, new worlds out of ugly parts.
All pre-Photoshop era work, when problem solving was paramount.
But acquired skills to achieve solutions are now recycled on other issues.