Leave OPPO 205 powered on?

Downside? Laser life? 
I being energy $$$ conscious always turn off my components after use, and that would include the Oppo 205.
But, I don't think the Laser would remain on if not in use, even if left powered on.

Thanks ozzy. I too am energy conscious but want best sound when I have time to listen :)  I leace my 200 watt Spectral amp off unkess listening:)