Because of the current state of the tech industry (AI data centers gobbling up huge amounts of chip production) steam decks are both sold out more often and are selling for higher prices. It wasn't feasible for Grazer to get his hands on one this jam.
We have done 14 of them now, and the prizes have changed over the years. The past several were Steam Decks, and they may return, or there may be other options in the future. Predicting the future is hard.