Well I've added a new toy for the wood shop. Picked up a Shark Plus HD from Rockler. I've made 2 carvings with it so far and screwed them both up, just a little bit of a learning curve here. So far I haven't noticed any difference in quility of the carvings, but I have a lot more control over what the machine does.
At first I though about getting rid of the Carvewright but I've now decided to keep both.
The Carvewright is limited in what it can do, but is very quick to setup a project and run it.
The Shark on the other hand is more difficult to setup, you have to program in toolpaths for every bit you use. It can handle wider projects (26") and can do longer but with the ease of a Carvewright. You have more control over the carve speed of cut, RPM of the bit depth of pass and what bit you want to use. And you can carve a wider varity of materials to include soft metals.