SomeGuy
Hobbyist
This is a good thing: now that you have two battery systems you have twice the potential to buy more tools!
I have Milwaukee 12V, Bosch 10.8 & 12V, Proxxon 10.8V and Craftsman C3 19V ( no longer made, but NOS still available) so I have more choices than space .
That was part of the idea, I can now have Milwaukee tools if so desired....Makita would be next because I REALLY would like their tiny duster thing.