If you're happy with the ArtZ, stick with it. Do understand, though, that as far as Wacom is concerned, the ArtZ has reached its product end-of-life support cycle and eventually you will have to replace it. For one thing, if the pen dies, you'll find the Graphire/Intuos pens are incompatible with the ArtZ tablets. And this is coming from someone who spent two years working a draftsman's cross-hairs puck on an ancient table-size digitizer (and successfully avoiding carpal tunnel syndrome), so I know whereof I speak on the ergonomics v. precision issue.