I have been using the same old National Detroit jitterbug sander for about 40 years. If it ever wears out, I'll probably buy a used one on eBay. I also use a National Detroit DA sander. Bosch is not the respected name it once was. They have lowered themselves to peddling Chinese stuff. For those of you who like to sand by hand, I have been seeing this sander in Europe for a long time.
http://www.wurthusa.com/web/en/website/produkte_1/bodyshop/flex_sanders/flex_sanders.php

It is finally available in the US.