[alsodumb]

I need to find the link but there is a way to attach camera to it.

Tbh most people use it only for learning ROS. I know you can learn ROS using Gazebo similations but real robot feels better and many universities use such hardware for reaching ROS and robotics basics in intro to robotics classes.

A more useful, affordable "robot" I can think of is Crazyflie nano drone. It has an amazing ecosystem of extensions around it and you can do as high level or low level as you want to. You can develop and tune your own sensor fusion and state estimation algorithms, control algorithms, etc.