Depends on the height of the ceiling: is it accessible by normal means (small step stool at the most) if it were to be part of the cabinet? Most places in the late 90s and early 2000s would use that space for additional decor: teapots, greenery, and the like, or even just up-lighting. Sometimes if they've replaced the cabinets, they'll put glass doors and lights to keep decor visible but dust-free.
Quite frankly, without a library ladder or a step stool roving around the kitchen, space above 8' is wasted, in my opinion. But I've also only ever owned small/short houses.