Vanlife euphoria is in full swing and Vanagon prices have climbed steadily out of the realm of everyday use vehicles for many. I would presume restorations are less profitable because of high cost of suitable candidates. 

Also, Vanagons do have competition now.  Used Sprinter vans are getting affordable. Dodge Promaster, Ford Transit series, to name few, are soon heading that way too.  Market will be more crowded in the near future. 

Chris.