Ok, I agree with Phan, but only to a point. I think that there is a fine line between compliance and loss of one self. A sub having the over all "what ever you want Master" mentality is good, as long as it doesn't go so far as they loss what makes them, well, them.
Lets take the Shaved thread. i know that my Pet, she really doesn't care one way or another, so if i want her shaved, fine. I know that there are situations where someone really isn't going to care. But i also know that there is, or should be, a level of respect and submissiveness in the relationship that goes both ways, and that makes sure the sub can get what they need or want to.
And you can still show that you want what your Master wants even when sharing your desires. Ex. "Master, i would love for you to hogtie me tonight, if that to is your wish...." "Master, my fantasy is ___________________, i would do anything for you fulfill this for me...."
Again, just my thoughts....