The new ASUS ROG Ally X is a whopping $800, but right now you can get the original (still amazing) ROG Ally for literally half the price and still play your favorite games.

source https://www.windowscentral.com/hardware/asus/why-buy-the-expensive-rog-ally-x-when-you-could-get-the-original-gaming-handheld-for-literally-half-the-price