This was certainly expected, but to giveaway free copies of Rocket League to those that pre-order Steam Hardware, not really.
Valve has partnered with developer Psyonix to give out free copies of the game to anyone who has pre-ordered Steam hardware. This includes Steam Machines, Steam Link, and the Steam Controller. Even if you already have Rocket League, you will get another copy as a gift.
Rocket League came silently and won the whole world with great gameplay and a lots of fun in the game