What David said.
Plus, list MSRP for what's probably the most expensive Riesling Spatlese I can think of is not really a direct comparison vs market price for a Scheurebe Kabinett from a producer primarily known for QPR. A bit like comparing a good deal on a Toyota Corolla to list price on a BMW 6 series.
(note: I drive an old Corolla)
There are still plenty of affordable Germans wines- for 2011s I paid $17 for Leitz RM Spatlese, $20 for Donnhoff OberL and Willi S Gr.Dom Kabinetts_.