Offer a choice, it keeps everyone happy.
I personally HATE the locks, I think they have the potential to bring reliability down, and they distract from the looks somewhat (I don't consider them as ugly as most seem to though).
But I know there will be some folks who want the locks, and I have no problem if its offered as an option (i.e. pay more to GET A LOCK).
The way it is now sucks, because those of us who hate the locks either have to buy a used gun (somewhat risky--you never know if a gun has been abused), or a new one with the lock. I'm not so anti-lock that I won't buy a new Smith, but I certainly do think that the pre-lock Smiths are a lot more desirable.