The 530 would have been our preference as well, but the panel is just not big enough to accommodate it with the configuration of other instruments that we have. And if you don't want to use it, you can simply turn it off. There is a full compliment of radios and navigation instruments that will allow you to fly without the GPS.
In related news: I released a new build of Gizmo64... this new plugin release brings us closer to the final update package. Not very exciting but still relevant.