If the foods were the same then, yes, $25 instead of $100 would be a bargain. But the foods are not the same. Typical breakfast fare is scrambled eggs, sausage, bacon, bread, cereal, fresh fruit, and juice drinks. There's no reasonable way these are worth $100 per person regardless of what time of day they're served. Even $25 is a stretch at many places considering what they offer.

By contrast, the $100 dinner people are thinking of is most likely fine steak and/or fish, gourmet prepared vegetables, and wine, beer, or cocktails. Serve it at 9am and it's still worth $100. It's not the time of day or name of the meal that counts, it's the type and quality of the food.