Most of them (especially the cold medicines) are not just ibuprofen/acetaminophen but are a "cocktail" that will also include dextromethorphan, guaifenesin, phe

Most of them (especially the cold medicines) are not just ibuprofen/acetaminophen but are a "cocktail" that will also include dextromethorphan, guaifenesin, phenylephrine, diphenhydramine, etc in different combinations/amounts depending what they are intended for. I don't personally use them but I could see how it could be useful rather than buying a bunch of individual medications.