Of course, the Germans were also designing for the future (which isn't necessarily wise given their situation).
I will say that the Germans seem to have been the most forward-thinking military in the world at the time. Ballistic missiles, cruise missile, ALCM's, SLBM's, ICBM's, SAM's, IR night sights, intermediate caliber assault rifles, revolver cannons, intercontinental bombers, the first practical military helicopters, guided A2G missiles, guided bombs, MANPADS.
Looking at what they tried to do, it's like looking at a diesel-punk version of the modern US military. From a technological standpoint, it's a shame Germany have the time to develop these furthers. Though it's inarguably better for the world that they didn't.
Thinking on it, I suppose it also shows the driving force of desperation, since many of these also came about in the lady few months of the war.