Would an SSD benefit an always-on machine?

Generally speaking media center machines don't need super-fast drives. Standard hard drives are capable of playing one movie while recording another.

So I'm thinking that the biggest benefits of the SSD would be reduced power consumption and noise. But "green" drives work pretty well too, and will get you a LOT more affordable capacity.

Thanks sminlal.

Noise was the primary consideration, but my secondary drive (spinpoint F1) is barely audible as it is, so I may as well go for another of those.