I like Dewalt, and the power of brushless, and the power of 60v. But if they do not offer every tool as a bare tool, what is the point? If one has to buy a battery (not the one you need) and charger for every tool you want, then there is no savings, and you have too much stuff hanging around and going obsolete.
Every flexvolt must come with a bare tool option for it to make sense. Otherwise, just buy the best tool in each category. DeWalt makes good tools, not the best of each type. Why limit yourself to a system if there is not net operational gain. Three batteries, one charger, and 25 tools. If that is the choice you decide to make.