[shubb]

This is basically a Segway, which is essentially an electric wheelchair with higher spec motors and battery.

All of the above sell for more than $1000 dollars, probably because that's just what the hardware costs :-(

Likely, the problem is over engineering. Segways and electric wheelchairs will often run for several years without needing new parts, and are expensively engineered to not catch fire.

In reality, Segways and the OneWheel are toys for most people. You can buy a toy remote control car for much less than a bomb disposal robot, because it's far lower quality. I think a toy quality device for toy grade use would have a bigger market.