I've got 3 of these in my house already, and I was thinking of picking up a couple more as back-ups, but they're already sold out on the Google store. Unfortun

I've got 3 of these in my house already, and I was thinking of picking up a couple more as back-ups, but they're already sold out on the Google store. Unfortunately, I'm not aware of any other small, "cast-able" device that has a digital output. Hopefully mine last for a while.