Customer loyalty?

Granted, the charger maintains its function, what I expect from a reputable manufacturer. But everything else galls me. Under the guise of innovation has its own battery and a private charger for each device. Here, it is out of their way to exclude an eventual third party and to secure a secondary market for juicy prices, this is something, for example printer cartridges.
So I carry on trips always various types of batteries and each matching chargers around with me. Unfortunately, I can not just change because of my extensive equipment but probably every other comparable manufacturers on the same trip. For me now is the type of battery is an important factor of the purchase decision, I prefer to use standard batteries eg in additional Battery Grip. The customer is our most important asset, we may exclude him mercilessly. For me there is therefore only 2 stars. With a universal charger, it would have been 5+ star for me.