I had always been a Urwerk fan and set my eyes on the UR-100 series. However, in the few year, there have been a plethora of Chinese knock off brands with satellite complication/wondering hours complication for a mere fraction of the price.
I would say that Urwerk's value was in their innovation, but now that this has been eroded and democratized there is no desire to acquire this brand, unfortunately.
34 Urwerk listings are live on the eBay market and 34 collector listings on the WatchProSite marketplace.