Personally, I think any machine with a self model and conceptual and affective systems on par with a human ought to be accorded basic rights. We aren't there yet, but it won't be too long.

In any case, I think we should promote the well being of all sentient intelligence, including ourselves:

Join it at: MetaBrainGrowthProcess.tribe.net

MetaBrain Growth Process tribe is dedicated to the exploration of processes to extend human cognition into alternative substrates.

From cyborg components for theraputic and augmentative ends to the ultimate goal of moving sentient entities into faster, more powerful, and more durable hardware (~5,000 ave. lifespan estimates) in a safe and effective manner, this tribe is intended as a center for discussion, networking, and collaborative effort.

(If you enjoy this topic, you should find the various other Transhumanist tribes of interest.)