There’s a cloned GDEmu that’s been for sale since springtime that is an illegal clone of the original. Now, someone has bought that clone in bulk, printed out Greg’s 3D print design (without credit) and is selling it for more than the price of the original.
Original: https://gdemu.wordpress.com/ordering/ordering-gdemu/ – $150
Clone: http://www.jackdiy.cn/page143?product_id=107 – $90
Clone reseller: https://retropiex.com/product/gdemu-v5-5-development-board-region-free/ – $200