I already posted in another thread that Vectrexer told me that a FlashBoy was sold at the Classic Gaming Expo Auction for a final price of $170 (USD) on July 31th.
Since he now also sent me a photo and additional info, I’ll open an extra thread.
CGE 2K10 FlashBoy Auction Picture
Classic Gaming Expo 2010 (CGE 2K10)
Nintendo Virtual Boy FlashBoy Cart item
Item Presenter: Jenn B. (*Rin* on Digital Press)
Photographer: Chris Romero
Location: Tropicana Resort and Hotel Conference Facility, Cohiba Rooms 1/2, Las Vegas, Nevada, USA
Nintendo Virtual Boy FlashBoy Cart Sale Price: $170.00 [USD]