I always wanted a Risa ukulele. I mostly wanted one because I thinks it's a really clever design and for the novelty value. (Generally, I don't even like the way electric ukuleles sound.) But at a price tag of nearly $400, I didn't want it that much. This cost be about $25 to build.
I actually looked for ways to improve the design but I couldn't find any room for improvement.
You just can't beat German engineering.