Because props spam your console and don't do stuff, while JVS works flawlessly and actually does stuff.
How did I know you would eventually make a topic like this?
Edit:
Because JVS looks better. </thread>
Stop taking those answers out of your ass.
@ Op.
I actually don't know.
Props were just fine. (Working condition)
People just didn't want to accept props.
Personally, props took the creativity out of building your own fridge or Tv, or computer.
Etc..