After looking at a few of the machines around (including all the Warco mills in their showroom) I went for the VMC. One main reason was height - the VMC has the main drive motor hanging down rather than sticking up and my workshop has limited headroom. The rise-and-fall knee looks like a reasonable proposition as part of a CNC conversion but not sure if that would be easier or harder than on the GH. GH capacity is a little larger, but the VMC has more iron in it (going by published weights) which might count for something! If you include a stand, then the VMC is a little cheaper, and the saving would buy you an R8 ER32 collet set. I've only had 2MT tooling until now, so would have needed to add 3MT or R8 collets, chuck, etc, and R8 is much nicer to use than MT shanks. Looking at the Warco site, in fact, they only seem to list the GH with R8 anyway.