Surprised with the price, a similar form factor that I know of is even more expensive https://shop.xgorobot.com/products/xgo-rider-world-s-first-desktop-wheel-l

Surprised with the price, a similar form factor that I know of is even more expensive https://shop.xgorobot.com/products/xgo-rider-world-s-first-desktop-wheel-legged-robot-with-ai https://shop.xgorobot.com/products/xgo-rider-world-s-first-d... (Chinese but since it's esp32 and raspberry pi it is possible to tinker with it) I wonder what's the catch? Cheap IMU/motors?