You get Fixed Wing mode and goggle support as I recall (I'm sure somebody will correct me if I'm remembering wrong). I've flown powered airplanes and gliders, so Fixed Wing has some appeal to me.
Thanks, PT-Mavic. I'd like Fixed Wing mode. I don't use goggles now, but tomorrow??? Looks like it may be worthwhile upgrading to .700. Is there a downside to .700?