I think what shocks me the most is that New Voyages has sparked some Trek fans to call for a full-blown revival of the Kirk/Spock/McCoy era with new actors, either on the big screen or on TV. (The idea being that if Superman and Batman can be played by several actors, the classic Trek group should be no exception.)
The difference is Superman and Batman began life outside of film and, in the end, are bigger than the people who play them.
Kirk, Spock and McCoy, on the other hand, were created as much by Shatner, Nimoy and Kelley as by any writer. The characters' gestures, inflections, mannerisms, etc are part of who they are in our minds, and all those things came from the actors. And the chemistry they had together was one of those lucky strokes you can't predict or engineer; it just happens. I think the idea of re-casting those parts is just as wrong-headed today as it was when Paramount considered it for the first film in '79.
Some of the New Voyages are fun, but I agree with Rao that it only works because nobody from Paramount is involved. And even then, it's still not as good as most episodes of TOS, even on the one-thousandth viewing.
Anyway, I wouldn't put money on new Trek product of any kind. It's dead. Let it be a lesson to people who think they can keep milking the same tired cow forever (are you listening, Eon productions?)