Actually with the Flash Expansion, which I have not done yet, you can add tons of new Performances and 3rd-Party Voice Libraries to the Motif XF and the MOXF. If you maxed out the Flash (2GB) and loaded it up you would have a new Workstation from a sound perspective. Plus you can add Karma and many Ipad/Mac Apps. I have had the Motif for a few years now and learn something new that I can do all the time. It's a fabulous workstation. So a new one from Yamaha would have to be fantastic for me to upgrade.